MedicationRequestAdviceMealSelected

This extension represents the advice meal quantity selected by the patient in glucometer.

Used in MedicationRequest resource.

The scope of this extension is ACSPIX BG file.

An example of the XML code is given below and the FHIR output:

<BG Val="83" Dt="2018-11-02" Tm="20:49" Flg="M1" Carb="61" cmd="3" D="1">
  <ADVICED_BOLUS type="Std">
    <RECOMMENDED BgIU="1.50" CarbIU="3.00" TotalIU="4.50"/>
    <SELECTED BgIU="2.50" CarbIU="1.10" TotalIU="3.60"/>
    <CONFIRMED BgIU="2.00" CarbIU="3.00" TotalIU="5.00"/>
  </ADVICED_BOLUS>
</BG>

FHIR output example for CarbIU="1.10" inside of SELECTED tag:

"extension": [
{  
"url": "http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected",
        "valueQuantity": {
            "value": "1.10",
            "unit": "[iU]",
            "system": "http://unitsofmeasure.org",
            "code": "[iU]"
        }
      }
    ]

Overview

The below overview shows the elements of the resource, data type and the cardinality of each. Further details like "Binding"/"Fixed values"/"contraints" etc can be found on clicking on each element.

Canonical URL - http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected

id0..1string
extensionC0..*Extension
url1..1uriFixed Value
id0..1string
extensionC0..*Extension
valueΣ1..1decimal
comparatorΣ ?!0..1codeBinding
unitΣ1..1string
systemΣ C1..1uri
codeΣ1..1code

Details

Extension
ShortOptional Extensions Element
Definition

Optional Extension Element - found in all resources.

Cardinality0..*
ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
Extension.id
Shortxml:id (or equivalent in JSON)
Definition

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Cardinality0..1
Typestring
Comments

Note that FHIR strings may not exceed 1MB in size

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
Extension.extension
ShortAdditional Content defined by implementations
Definition

May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Cardinality0..*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Slicing

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
Extension.url
Shortidentifies the meaning of the extension
Definition

Source of the definition for the extension code - a logical name or a URL.

Cardinality1..1
Typeuri
Comments

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Fixed Value
http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected
Mappings
  • rim: n/a
  • rim: N/A
Extension.value[x]:valueQuantity
ShortValue of extension
Definition

Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

Cardinality1..1
TypeQuantity
Binding

MetricUnits (required)

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
  • rim: N/A
Extension.value[x]:valueQuantity.id
Shortxml:id (or equivalent in JSON)
Definition

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Cardinality0..1
Typestring
Comments

Note that FHIR strings may not exceed 1MB in size

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
Extension.value[x]:valueQuantity.extension
ShortAdditional Content defined by implementations
Definition

May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Cardinality0..*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Slicing

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
Extension.value[x]:valueQuantity.value
ShortNumerical value (with implicit precision)
Definition

The value of the measured amount. The value includes an implicit precision in the presentation of the value.

Cardinality1..1
Typedecimal
SummaryTrue
Requirements

Precision is handled implicitly in almost all cases of measurement.

Comments

The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: SN.2 / CQ - N/A
  • rim: PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value
Extension.value[x]:valueQuantity.comparator
Short< | <= | >= | > - how to understand the value
Definition

How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

Cardinality0..1
Typecode
Binding

How the Quantity should be understood and represented.

QuantityComparator (required)

ModifierTrue
SummaryTrue
Requirements

Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

Comments

This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value.

Meaning when missing

If there is no comparator, then there is no modification of the value

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: SN.1 / CQ.1
  • rim: IVL properties
Extension.value[x]:valueQuantity.unit
ShortUnit representation
Definition

A human-readable form of the unit.

Cardinality1..1
Typestring
SummaryTrue
Requirements

There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.

Comments

Note that FHIR strings may not exceed 1MB in size

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: (see OBX.6 etc.) / CQ.2
  • rim: PQ.unit
Extension.value[x]:valueQuantity.system
ShortSystem that defines coded unit form
Definition

The identification of the system that provides the coded form of the unit.

Cardinality1..1
Typeuri
SummaryTrue
Requirements

Need to know the system that defines the coded form of the unit.

Comments

see http://en.wikipedia.org/wiki/Uniform_resource_identifier

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1, qty-3
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: (see OBX.6 etc.) / CQ.2
  • rim: CO.codeSystem, PQ.translation.codeSystem
Extension.value[x]:valueQuantity.code
ShortCoded form of the unit
Definition

A computer processable form of the unit in some unit representation system.

Cardinality1..1
Typecode
SummaryTrue
Requirements

Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.

Comments

The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.

ConditionsThe cardinality or value of this element may be affected by these constraints: ele-1
Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() | (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: (see OBX.6 etc.) / CQ.2
  • rim: PQ.code, MO.currency, PQ.translation.code

Table

Extension0..*
Extension.idstring0..1
Extension.extensionExtension0..*
Extension.urluri1..1
Extension.value[x]:valueQuantityQuantity1..1
Extension.value[x]:valueQuantity.idstring0..1
Extension.value[x]:valueQuantity.extensionExtension0..*
Extension.value[x]:valueQuantity.valuedecimal1..1
Extension.value[x]:valueQuantity.comparatorcode0..1
Extension.value[x]:valueQuantity.unitstring1..1
Extension.value[x]:valueQuantity.systemuri1..1
Extension.value[x]:valueQuantity.codecode1..1

XML

<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="84f93bfc-2c7d-48ee-8bcd-0aa4f8e06e41" />
<meta>
<versionId value="3" />
<lastUpdated value="2018-08-17T12:33:52.876+00:00" />
</meta>
<url value="http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected" />
<version value="1" />
<name value="advice-meal-component-selected" />
<status value="active" />
<date value="2018-08-17T12:33:52.033+00:00" />
<description value="This extension represents the advice meal quantity selected by the patient in glucometer.\n\nUsed in MedicationRequest resource.\n\nThe scope of this extension is ACSPIX BG file." />
<fhirVersion value="3.0.1" />
<kind value="complex-type" />
<abstract value="false" />
<contextType value="resource" />
<context value="MedicationRequest" />
<type value="Extension" />
<baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
<derivation value="constraint" />
<snapshot>
<element id="Extension">
<path value="Extension" />
<short value="Optional Extensions Element" />
<definition value="Optional Extension Element - found in all resources." />
<min value="0" />
<max value="*" />
<base>
<path value="Element" />
<min value="0" />
<max value="*" />
</base>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<constraint>
<key value="ext-1" />
<severity value="error" />
<human value="Must have either extensions or value[x], not both" />
<expression value="extension.exists() != value.exists()" />
<xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
</constraint>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
<element id="Extension.id">
<path value="Extension.id" />
<representation value="xmlAttr" />
<short value="xml:id (or equivalent in JSON)" />
<definition value="unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
<comment value="Note that FHIR strings may not exceed 1MB in size" />
<min value="0" />
<max value="1" />
<base>
<path value="Element.id" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="string" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
</element>
<element id="Extension.extension">
<path value="Extension.extension" />
<slicing>
<discriminator>
<type value="value" />
<path value="url" />
</discriminator>
<description value="Extensions are always sliced by (at least) url" />
<rules value="open" />
</slicing>
<short value="Additional Content defined by implementations" />
<definition value="May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
<comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
<alias value="extensions" />
<alias value="user content" />
<min value="0" />
<max value="*" />
<base>
<path value="Element.extension" />
<min value="0" />
<max value="*" />
</base>
<type>
<code value="Extension" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<constraint>
<key value="ext-1" />
<severity value="error" />
<human value="Must have either extensions or value[x], not both" />
<expression value="extension.exists() != value.exists()" />
<xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
</constraint>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
<element id="Extension.url">
<path value="Extension.url" />
<representation value="xmlAttr" />
<short value="identifies the meaning of the extension" />
<definition value="Source of the definition for the extension code - a logical name or a URL." />
<comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." />
<min value="1" />
<max value="1" />
<base>
<path value="Extension.url" />
<min value="1" />
<max value="1" />
</base>
<type>
<code value="uri" />
</type>
<fixedUri value="http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected" />
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity">
<path value="Extension.valueQuantity" />
<sliceName value="valueQuantity" />
<short value="Value of extension" />
<definition value="Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list)." />
<comment value="A stream of bytes, base64 encoded" />
<min value="1" />
<max value="1" />
<base>
<path value="Extension.value[x]" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="Quantity" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<binding>
<strength value="required" />
<valueSetUri value="http://roche.com/fhir/rdc/ValueSet/devicemetric-metric-unit" />
</binding>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.id">
<path value="Extension.valueQuantity.id" />
<representation value="xmlAttr" />
<short value="xml:id (or equivalent in JSON)" />
<definition value="unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
<comment value="Note that FHIR strings may not exceed 1MB in size" />
<min value="0" />
<max value="1" />
<base>
<path value="Element.id" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="string" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.extension">
<path value="Extension.valueQuantity.extension" />
<slicing>
<discriminator>
<type value="value" />
<path value="url" />
</discriminator>
<description value="Extensions are always sliced by (at least) url" />
<rules value="open" />
</slicing>
<short value="Additional Content defined by implementations" />
<definition value="May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." />
<comment value="There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone." />
<alias value="extensions" />
<alias value="user content" />
<min value="0" />
<max value="*" />
<base>
<path value="Element.extension" />
<min value="0" />
<max value="*" />
</base>
<type>
<code value="Extension" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<constraint>
<key value="ext-1" />
<severity value="error" />
<human value="Must have either extensions or value[x], not both" />
<expression value="extension.exists() != value.exists()" />
<xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" />
</constraint>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.value">
<path value="Extension.valueQuantity.value" />
<short value="Numerical value (with implicit precision)" />
<definition value="The value of the measured amount. The value includes an implicit precision in the presentation of the value." />
<comment value="The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books)." />
<requirements value="Precision is handled implicitly in almost all cases of measurement." />
<min value="1" />
<max value="1" />
<base>
<path value="Quantity.value" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="decimal" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<isSummary value="true" />
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="v2" />
<map value="SN.2 / CQ - N/A" />
</mapping>
<mapping>
<identity value="rim" />
<map value="PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.comparator">
<path value="Extension.valueQuantity.comparator" />
<short value="< | <= | >= | > - how to understand the value" />
<definition value="How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value." />
<comment value="This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value." />
<requirements value="Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology." />
<min value="0" />
<max value="1" />
<base>
<path value="Quantity.comparator" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="code" />
</type>
<meaningWhenMissing value="If there is no comparator, then there is no modification of the value" />
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<isModifier value="true" />
<isSummary value="true" />
<binding>
<extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="QuantityComparator" />
</extension>
<strength value="required" />
<description value="How the Quantity should be understood and represented." />
<valueSetReference>
<reference value="http://hl7.org/fhir/ValueSet/quantity-comparator" />
</valueSetReference>
</binding>
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="v2" />
<map value="SN.1 / CQ.1" />
</mapping>
<mapping>
<identity value="rim" />
<map value="IVL properties" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.unit">
<extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
<valueBoolean value="true" />
</extension>
<path value="Extension.valueQuantity.unit" />
<short value="Unit representation" />
<definition value="A human-readable form of the unit." />
<comment value="Note that FHIR strings may not exceed 1MB in size" />
<requirements value="There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms." />
<min value="1" />
<max value="1" />
<base>
<path value="Quantity.unit" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="string" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<isSummary value="true" />
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="v2" />
<map value="(see OBX.6 etc.) / CQ.2" />
</mapping>
<mapping>
<identity value="rim" />
<map value="PQ.unit" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.system">
<path value="Extension.valueQuantity.system" />
<short value="System that defines coded unit form" />
<definition value="The identification of the system that provides the coded form of the unit." />
<comment value="see http://en.wikipedia.org/wiki/Uniform_resource_identifier" />
<requirements value="Need to know the system that defines the coded form of the unit." />
<min value="1" />
<max value="1" />
<base>
<path value="Quantity.system" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="uri" />
</type>
<condition value="ele-1" />
<condition value="qty-3" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<isSummary value="true" />
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="v2" />
<map value="(see OBX.6 etc.) / CQ.2" />
</mapping>
<mapping>
<identity value="rim" />
<map value="CO.codeSystem, PQ.translation.codeSystem" />
</mapping>
</element>
<element id="Extension.value[x]:valueQuantity.code">
<path value="Extension.valueQuantity.code" />
<short value="Coded form of the unit" />
<definition value="A computer processable form of the unit in some unit representation system." />
<comment value="The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system." />
<requirements value="Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest." />
<min value="1" />
<max value="1" />
<base>
<path value="Quantity.code" />
<min value="0" />
<max value="1" />
</base>
<type>
<code value="code" />
</type>
<condition value="ele-1" />
<constraint>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() | (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
</constraint>
<isSummary value="true" />
<mapping>
<identity value="rim" />
<map value="n/a" />
</mapping>
<mapping>
<identity value="v2" />
<map value="(see OBX.6 etc.) / CQ.2" />
</mapping>
<mapping>
<identity value="rim" />
<map value="PQ.code, MO.currency, PQ.translation.code" />
</mapping>
</element>
</snapshot>
<differential>
<element id="Extension.url">
<path value="Extension.url" />
<fixedUri value="http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected" />
</element>
<element id="Extension.value[x]:valueQuantity">
<path value="Extension.valueQuantity" />
<sliceName value="valueQuantity" />
<min value="1" />
<type>
<code value="Quantity" />
</type>
<binding>
<strength value="required" />
<valueSetUri value="http://roche.com/fhir/rdc/ValueSet/devicemetric-metric-unit" />
</binding>
</element>
<element id="Extension.value[x]:valueQuantity.value">
<path value="Extension.valueQuantity.value" />
<min value="1" />
</element>
<element id="Extension.value[x]:valueQuantity.unit">
<extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
<valueBoolean value="true" />
</extension>
<path value="Extension.valueQuantity.unit" />
<min value="1" />
</element>
<element id="Extension.value[x]:valueQuantity.system">
<path value="Extension.valueQuantity.system" />
<min value="1" />
</element>
<element id="Extension.value[x]:valueQuantity.code">
<path value="Extension.valueQuantity.code" />
<min value="1" />
</element>
</differential>
</StructureDefinition>

JSON

{
"resourceType": "StructureDefinition",
"id": "84f93bfc-2c7d-48ee-8bcd-0aa4f8e06e41",
"meta": {
"versionId": "3",
"lastUpdated": "2018-08-17T12:33:52.876+00:00"
},
"url": "http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected",
"version": "1",
"name": "advice-meal-component-selected",
"status": "active",
"date": "2018-08-17T12:33:52.033+00:00",
"description": "This extension represents the advice meal quantity selected by the patient in glucometer.\n\nUsed in MedicationRequest resource.\n\nThe scope of this extension is ACSPIX BG file.",
"fhirVersion": "3.0.1",
"kind": "complex-type",
"abstract": false,
"contextType": "resource",
"context": [
"MedicationRequest"
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Optional Extensions Element",
"definition": "Optional Extension Element - found in all resources.",
"min": 0,
"max": "*",
"base": {
"path": "Element",
"min": 0,
"max": "*"
},
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"comment": "Note that FHIR strings may not exceed 1MB in size",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Additional Content defined by implementations",
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
"comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
"alias": [
"extensions",
"user content"
],
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.url",
"path": "Extension.url",
"representation": [
"xmlAttr"
],
"short": "identifies the meaning of the extension",
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"fixedUri": "http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected",
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]:valueQuantity",
"path": "Extension.valueQuantity",
"sliceName": "valueQuantity",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"comment": "A stream of bytes, base64 encoded",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Quantity"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"binding": {
"strength": "required",
"valueSetUri": "http://roche.com/fhir/rdc/ValueSet/devicemetric-metric-unit"
},
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.id",
"path": "Extension.valueQuantity.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"comment": "Note that FHIR strings may not exceed 1MB in size",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.extension",
"path": "Extension.valueQuantity.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Additional Content defined by implementations",
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
"comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
"alias": [
"extensions",
"user content"
],
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.value",
"path": "Extension.valueQuantity.value",
"short": "Numerical value (with implicit precision)",
"definition": "The value of the measured amount. The value includes an implicit precision in the presentation of the value.",
"comment": "The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).",
"requirements": "Precision is handled implicitly in almost all cases of measurement.",
"min": 1,
"max": "1",
"base": {
"path": "Quantity.value",
"min": 0,
"max": "1"
},
"type": [
{
"code": "decimal"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"isSummary": true,
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "v2",
"map": "SN.2 / CQ - N/A"
},
{
"identity": "rim",
"map": "PQ.value, CO.value, MO.value, IVL.high or IVL.low depending on the value"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.comparator",
"path": "Extension.valueQuantity.comparator",
"short": "< | <= | >= | > - how to understand the value",
"definition": "How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is \"<\" , then the real value is < stated value.",
"comment": "This is labeled as \"Is Modifier\" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value.",
"requirements": "Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.",
"min": 0,
"max": "1",
"base": {
"path": "Quantity.comparator",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"meaningWhenMissing": "If there is no comparator, then there is no modification of the value",
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"isModifier": true,
"isSummary": true,
"binding": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString": "QuantityComparator"
}
],
"strength": "required",
"description": "How the Quantity should be understood and represented.",
"valueSetReference": {
"reference": "http://hl7.org/fhir/ValueSet/quantity-comparator"
}
},
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "v2",
"map": "SN.1 / CQ.1"
},
{
"identity": "rim",
"map": "IVL properties"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.unit",
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
"valueBoolean": true
}
],
"path": "Extension.valueQuantity.unit",
"short": "Unit representation",
"definition": "A human-readable form of the unit.",
"comment": "Note that FHIR strings may not exceed 1MB in size",
"requirements": "There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.",
"min": 1,
"max": "1",
"base": {
"path": "Quantity.unit",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"isSummary": true,
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "v2",
"map": "(see OBX.6 etc.) / CQ.2"
},
{
"identity": "rim",
"map": "PQ.unit"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.system",
"path": "Extension.valueQuantity.system",
"short": "System that defines coded unit form",
"definition": "The identification of the system that provides the coded form of the unit.",
"comment": "see http://en.wikipedia.org/wiki/Uniform_resource_identifier",
"requirements": "Need to know the system that defines the coded form of the unit.",
"min": 1,
"max": "1",
"base": {
"path": "Quantity.system",
"min": 0,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"condition": [
"ele-1",
"qty-3"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"isSummary": true,
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "v2",
"map": "(see OBX.6 etc.) / CQ.2"
},
{
"identity": "rim",
"map": "CO.codeSystem, PQ.translation.codeSystem"
}
]
},
{
"id": "Extension.value[x]:valueQuantity.code",
"path": "Extension.valueQuantity.code",
"short": "Coded form of the unit",
"definition": "A computer processable form of the unit in some unit representation system.",
"comment": "The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.",
"requirements": "Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.",
"min": 1,
"max": "1",
"base": {
"path": "Quantity.code",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div"
}
],
"isSummary": true,
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "v2",
"map": "(see OBX.6 etc.) / CQ.2"
},
{
"identity": "rim",
"map": "PQ.code, MO.currency, PQ.translation.code"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://roche.com/fhir/rdc/StructureDefinition/advice-meal-component-selected"
},
{
"id": "Extension.value[x]:valueQuantity",
"path": "Extension.valueQuantity",
"sliceName": "valueQuantity",
"min": 1,
"type": [
{
"code": "Quantity"
}
],
"binding": {
"strength": "required",
"valueSetUri": "http://roche.com/fhir/rdc/ValueSet/devicemetric-metric-unit"
}
},
{
"id": "Extension.value[x]:valueQuantity.value",
"path": "Extension.valueQuantity.value",
"min": 1
},
{
"id": "Extension.value[x]:valueQuantity.unit",
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
"valueBoolean": true
}
],
"path": "Extension.valueQuantity.unit",
"min": 1
},
{
"id": "Extension.value[x]:valueQuantity.system",
"path": "Extension.valueQuantity.system",
"min": 1
},
{
"id": "Extension.value[x]:valueQuantity.code",
"path": "Extension.valueQuantity.code",
"min": 1
}
]
}
}