EX - Remaining Supply

Übersicht Über die Extension

NameDescriptionCanonical_URLStatusVersion
RemainingSupplyEX

This extension is used to specify the remaining supply of a medication

https://gematik.de/fhir/erp-servicerequest/StructureDefinition/remaining-supply-exdraft1.2

Über die Extension

Motivation

Diese Extension gibt strukturiert darüber Auskunft, wie lange die Reichweite der Medikation noch dauert. Angabe erfolgt mit Wert und Einheit, die per Freitext unter .unit angegeben wird. Bsp: 7 Stück.

Inhalt der Extension

Folgende Ansichten existieren die Extension:

id0..1string
extensionI0..0Extension
url1..1uriFixed Value
id0..1string
extensionI0..*Extension
valueS Σ1..1decimal
comparatorΣ ?!0..1codeBinding
unitS Σ1..1string
systemΣ I0..1uri
codeΣ0..1code
Extension
DefinitionOptional Extension Element - found in all resources.
Cardinality0...*
Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (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
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
Typestring
Mappings
  • rim: n/a
Extension.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...0
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.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (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
DefinitionSource 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.

Fixed Value

https://gematik.de/fhir/erp-servicerequest/StructureDefinition/remaining-supply-ex

Mappings
  • rim: N/A
Extension.value[x]
DefinitionValue of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).
Cardinality1...1
TypeQuantity
Must SupportTrue
Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • rim: N/A
Extension.value[x].id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
Typestring
Mappings
  • rim: n/a
Extension.value[x].extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. 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 can 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.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (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].value
DefinitionThe value of the measured amount. The value includes an implicit precision in the presentation of the value.
Cardinality1...1
Typedecimal
Must SupportTrue
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).

Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (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].comparator
DefinitionHow 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

Note that FHIR strings SHALL NOT exceed 1MB in size

Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: SN.1 / CQ.1
  • rim: IVL properties
Extension.value[x].unit
DefinitionA human-readable form of the unit.
Cardinality1...1
Typestring
Must SupportTrue
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 SHALL NOT exceed 1MB in size

Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: (see OBX.6 etc.) / CQ.2
  • rim: PQ.unit
Extension.value[x].system
DefinitionThe identification of the system that provides the coded form of the unit.
Cardinality0...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

Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: (see OBX.6 etc.) / CQ.2
  • rim: CO.codeSystem, PQ.translation.codeSystem
Extension.value[x].code
DefinitionA computer processable form of the unit in some unit representation system.
Cardinality0...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.

Invariants
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: (see OBX.6 etc.) / CQ.2
  • rim: PQ.code, MO.currency, PQ.translation.code
<StructureDefinition xmlns="http://hl7.org/fhir">
    <id value="remaining-supply-ex" />
    <url value="https://gematik.de/fhir/erp-servicerequest/StructureDefinition/remaining-supply-ex" />
    <version value="1.2" />
    <name value="RemainingSupplyEX" />
    <title value="Remaining Supply EX" />
    <status value="draft" />
    <experimental value="false" />
    <date value="2025-01-01" />
    <publisher value="gematik GmbH" />
    <description value="This extension is used to specify the remaining supply of a medication" />
    <fhirVersion value="4.0.1" />
    <kind value="complex-type" />
    <abstract value="false" />
    <context>
        <type value="element" />
        <expression value="Element" />
    </context>
    <type value="Extension" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
    <derivation value="constraint" />
    <differential>
        <element id="Extension.extension">
            <path value="Extension.extension" />
            <max value="0" />
        </element>
        <element id="Extension.url">
            <path value="Extension.url" />
            <fixedUri value="https://gematik.de/fhir/erp-servicerequest/StructureDefinition/remaining-supply-ex" />
        </element>
        <element id="Extension.value[x]">
            <path value="Extension.value[x]" />
            <min value="1" />
            <type>
                <code value="Quantity" />
            </type>
            <mustSupport value="true" />
        </element>
        <element id="Extension.value[x].value">
            <path value="Extension.value[x].value" />
            <min value="1" />
            <mustSupport value="true" />
        </element>
        <element id="Extension.value[x].unit">
            <path value="Extension.value[x].unit" />
            <min value="1" />
            <mustSupport value="true" />
        </element>
    </differential>
</StructureDefinition>
{
    "resourceType": "StructureDefinition",
    "id": "remaining-supply-ex",
    "url": "https://gematik.de/fhir/erp-servicerequest/StructureDefinition/remaining-supply-ex",
    "version": "1.2",
    "name": "RemainingSupplyEX",
    "title": "Remaining Supply EX",
    "status": "draft",
    "experimental": false,
    "date": "2025-01-01",
    "publisher": "gematik GmbH",
    "description": "This extension is used to specify the remaining supply of a medication",
    "fhirVersion": "4.0.1",
    "kind": "complex-type",
    "abstract": false,
    "context":  [
        {
            "type": "element",
            "expression": "Element"
        }
    ],
    "type": "Extension",
    "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
    "derivation": "constraint",
    "differential": {
        "element":  [
            {
                "id": "Extension.extension",
                "path": "Extension.extension",
                "max": "0"
            },
            {
                "id": "Extension.url",
                "path": "Extension.url",
                "fixedUri": "https://gematik.de/fhir/erp-servicerequest/StructureDefinition/remaining-supply-ex"
            },
            {
                "id": "Extension.value[x]",
                "path": "Extension.value[x]",
                "min": 1,
                "type":  [
                    {
                        "code": "Quantity"
                    }
                ],
                "mustSupport": true
            },
            {
                "id": "Extension.value[x].value",
                "path": "Extension.value[x].value",
                "min": 1,
                "mustSupport": true
            },
            {
                "id": "Extension.value[x].unit",
                "path": "Extension.value[x].unit",
                "min": 1,
                "mustSupport": true
            }
        ]
    }
}