UK Core Implementation Guide STU3 Sequence

Please note:

This version of the UK Core is for C&TA Sprint 7 Review.
This version is not suitable for implementation. Other versions are available on the UK Core Version History Guide
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A summary of changes is available on the STU3 Sequence Change Log

StructureDefinition Extension-UKCore-CuffSize

Important

This Profile underwent Clinical and Technical Assurance during Sprint 7. This is a new Extension added to UK Core and should undergo review during the Sprint 7 review window.

Click here to Report Issue for Extension-UKCore-CuffSize .

Canonical_URL	Description	Profile_Purpose
https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CuffSize	An extension to record the cuff size of a sphygmomanometer.	This extension is a clinical observation use case to record the cuff sized used on a sphygmomanometer when the blood pressure was measured.

Context of Use

Device

Tree View

Extension	I		Extension	Element Id Extension Short description An extension to record the cuff size of a sphygmomanometer. Definition This extension allows the recording of the cuff size of a sphygmomanometer used in a blood pressure reading. Data Type Extension Constraints 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
url		1..1	System.StringFixed Value	Element Id Extension.url Short description identifies the meaning of the extension Definition Source of the definition for the extension code - a logical name or a URL. 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. Data Type System.String Fixed Value https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CuffSize Mappings rim:N/A
value[x]		1..1		Element Id Extension.value[x] Short description A set of codes to record the cuff size Definition Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a rim:N/A
valueCodeableConcept			CodeableConcept	Data Type CodeableConcept
coding	Σ	0..*	CodingBinding	Element Id Extension.value[x].coding Short description Code defined by a terminology system Definition A reference to a code defined by a terminology system. Requirements Allows for alternative encodings within a code system, and translations to other code systems. Comments Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Data Type Coding Binding A set of codes to record the cuff size UKCoreBloodPressureCuffSize (preferred) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE subset one of the sets of component 1-3 or 4-6 rim:CV orim:fhir:Coding rdfs:subClassOf dt:CDCoding v2:CE.1-8, CE.10-22 rim:union(., ./translation) orim:fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding
text	Σ	0..1	string	There are no (further) constraints on this element Element Id Extension.value[x].text Short description Plain text representation of the concept Definition A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. Requirements The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Comments Very often the text is the same as a displayName of one of the codings. Data Type string Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE.9. But note many systems use CE.2 for this rim:./originalText[mediaType/code="text/plain"]/data orim:fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText

Table View

Extension		..
Extension.url		..
Extension.value[x]	CodeableConcept	1..
Extension.value[x].coding		..

XML View

<StructureDefinition xmlns="http://hl7.org/fhir">
    <id value="Extension-UKCore-CuffSize" />
    <url value="https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CuffSize" />
    <version value="1.0.0" />
    <name value="ExtensionUKCoreCuffSize" />
    <title value="Extension UK Core Cuff Size" />
    <status value="draft" />
    <date value="2023-09-12" />
    <publisher value="HL7 UK" />
    <contact>
        <name value="HL7 UK" />
        <telecom>
            <system value="email" />
            <value value="ukcore@hl7.org.uk" />
            <use value="work" />
            <rank value="1" />
        </telecom>
    </contact>
    <description value="An extension to record the cuff size of a sphygmomanometer." />
    <purpose value="This extension is a clinical observation use case to record the cuff sized used on a sphygmomanometer when the blood pressure was measured." />
    <copyright value="Copyright &#169; 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the &quot;License&quot;); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7&#174; FHIR&#174; standard Copyright &#169; 2011+ HL7 The HL7&#174; FHIR&#174; standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html." />
    <fhirVersion value="4.0.1" />
    <kind value="complex-type" />
    <abstract value="false" />
    <context>
        <type value="element" />
        <expression value="Device" />
    </context>
    <type value="Extension" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
    <derivation value="constraint" />
    <differential>
        <element id="Extension">
            <path value="Extension" />
            <short value="An extension to record the cuff size of a sphygmomanometer." />
            <definition value="This extension allows the recording of the cuff size of a sphygmomanometer used in a blood pressure reading." />
        </element>
        <element id="Extension.url">
            <path value="Extension.url" />
            <fixedUri value="https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CuffSize" />
        </element>
        <element id="Extension.value[x]">
            <path value="Extension.value[x]" />
            <short value="A set of codes to record the cuff size" />
            <min value="1" />
            <type>
                <code value="CodeableConcept" />
            </type>
        </element>
        <element id="Extension.value[x].coding">
            <path value="Extension.value[x].coding" />
            <binding>
                <strength value="preferred" />
                <description value="A set of codes to record the cuff size" />
                <valueSet value="https://fhir.hl7.org.uk/ValueSet/UKCore-BloodPressure-CuffSize" />
            </binding>
        </element>
    </differential>
</StructureDefinition>

JSON View

{
    "resourceType": "StructureDefinition",
    "id": "Extension-UKCore-CuffSize",
    "url": "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CuffSize",
    "version": "1.0.0",
    "name": "ExtensionUKCoreCuffSize",
    "title": "Extension UK Core Cuff Size",
    "status": "draft",
    "date": "2023-09-12",
    "publisher": "HL7 UK",
    "contact":  [
        {
            "name": "HL7 UK",
            "telecom":  [
                {
                    "system": "email",
                    "value": "ukcore@hl7.org.uk",
                    "use": "work",
                    "rank": 1
                }
            ]
        }
    ],
    "description": "An extension to record the cuff size of a sphygmomanometer.",
    "purpose": "This extension is a clinical observation use case to record the cuff sized used on a sphygmomanometer when the blood pressure was measured.",
    "copyright": "Copyright © 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7® FHIR® standard Copyright © 2011+ HL7 The HL7® FHIR® standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html.",
    "fhirVersion": "4.0.1",
    "kind": "complex-type",
    "abstract": false,
    "context":  [
        {
            "type": "element",
            "expression": "Device"
        }
    ],
    "type": "Extension",
    "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
    "derivation": "constraint",
    "differential": {
        "element":  [
            {
                "id": "Extension",
                "path": "Extension",
                "short": "An extension to record the cuff size of a sphygmomanometer.",
                "definition": "This extension allows the recording of the cuff size of a sphygmomanometer used in a blood pressure reading."
            },
            {
                "id": "Extension.url",
                "path": "Extension.url",
                "fixedUri": "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-CuffSize"
            },
            {
                "id": "Extension.value[x]",
                "path": "Extension.value[x]",
                "short": "A set of codes to record the cuff size",
                "min": 1,
                "type":  [
                    {
                        "code": "CodeableConcept"
                    }
                ]
            },
            {
                "id": "Extension.value[x].coding",
                "path": "Extension.value[x].coding",
                "binding": {
                    "strength": "preferred",
                    "description": "A set of codes to record the cuff size",
                    "valueSet": "https://fhir.hl7.org.uk/ValueSet/UKCore-BloodPressure-CuffSize"
                }
            }
        ]
    }
}

Examples

Cuff Size - An example to illustrate a blood pressure monitoring device with a large cuff.
Example UKCore-Extension-CuffSize

Extension Specific Guidance

There is a binding within this extension to a ValueSet UKCore-BloodPressure-CuffSize.