Quality Measure Implementation Guide
1.0.0 - STU 1

Quality Measure Implementation Guide - Downloaded Version null See the Directory of published versions

## : ISO-8601-Derived Periods Codes - TTL Representation

Page standards status: Trial-use | Maturity Level: 4

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    @prefix fhir: <http://hl7.org/fhir/> .
    @prefix owl: <http://www.w3.org/2002/07/owl#> .
    @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
    @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
    @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

    # - resource -------------------------------------------------------------------

     a fhir:CodeSystem ;
      fhir:nodeRole fhir:treeRoot ;
      fhir:id [ fhir:v "iso-8601-derived-periods"] ; #
      fhir:text [
    fhir:status [ fhir:v "generated" ] ;
    fhir:div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem iso-8601-derived-periods</b></p><a name=\"iso-8601-derived-periods\"> </a><a name=\"hciso-8601-derived-periods\"> </a><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/iso-8601-derived-periods</code> defines codes, but no codes are represented here</p></div>"^^rdf:XMLLiteral
      ] ; #
      fhir:extension ( [
    fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"^^xsd:anyURI ] ;
    fhir:value [
    a fhir:code ;
    fhir:v "cqi"     ]
      ] [
    fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"^^xsd:anyURI ] ;
    fhir:value [
    a fhir:integer ;
    fhir:v 4 ;
          ( fhir:extension [
    fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom"^^xsd:anyURI ] ;
    fhir:value [
    a fhir:canonical ;
    fhir:v "http://hl7.org/fhir/uv/cqm/ImplementationGuide/hl7.fhir.uv.cqm"^^xsd:anyURI ;
    fhir:link <http://hl7.org/fhir/uv/cqm/ImplementationGuide/hl7.fhir.uv.cqm>         ]       ] )     ]
      ] [
    fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"^^xsd:anyURI ] ;
    fhir:value [
    a fhir:code ;
    fhir:v "trial-use" ;
          ( fhir:extension [
    fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom"^^xsd:anyURI ] ;
    fhir:value [
    a fhir:canonical ;
    fhir:v "http://hl7.org/fhir/uv/cqm/ImplementationGuide/hl7.fhir.uv.cqm"^^xsd:anyURI ;
    fhir:link <http://hl7.org/fhir/uv/cqm/ImplementationGuide/hl7.fhir.uv.cqm>         ]       ] )     ]
      ] ) ; #
      fhir:url [ fhir:v "http://terminology.hl7.org/CodeSystem/iso-8601-derived-periods"^^xsd:anyURI] ; #
      fhir:identifier ( [
    fhir:system [ fhir:v "urn:ietf:rfc:3986"^^xsd:anyURI ] ;
    fhir:value [ fhir:v "urn:oid:2.16.840.1.113883.4.642.40.61.16.2" ]
      ] ) ; #
      fhir:version [ fhir:v "1.0.0"] ; #
      fhir:name [ fhir:v "ISO8601DerivedPeriodsCodes"] ; #
      fhir:title [ fhir:v "ISO-8601-Derived Periods Codes"] ; #
      fhir:status [ fhir:v "active"] ; #
      fhir:experimental [ fhir:v false] ; #
      fhir:date [ fhir:v "2025-06-27"^^xsd:date] ; #
      fhir:publisher [ fhir:v "HL7 International / Clinical Quality Information"] ; #
      fhir:contact ( [
        ( fhir:telecom [
    fhir:system [ fhir:v "url" ] ;
    fhir:value [ fhir:v "http://www.hl7.org/Special/committees/cqi" ]     ] )
      ] ) ; #
      fhir:description [ fhir:v "Defines codes for the representation of age ranges that are unambiguous, human readable and machine-readable as a compositional grammar (i.e. the code system defines rules for constructing codes, rather than explicitly enumerating the possible codes). Age ranges are expressed through two simple durations as defined in the [ISO 8601](https://www.iso.org/iso-8601-date-and-time-format.html) specification.\n\nCodes in the code system are defined according to the grammar:\n\nAn age range is defined as two durations: `[duration1]--[duration2]`, where `duration1` specifies the lower inclusive bound of the age range (everyone who is this age and above) and `duration2` specifies the upper exclusive bound of the age range.\n\nFor example, the age range \"1-9 years\" means everyone who is at least one year old and less than 10 years old represented as `P1Y--P10Y`. The age range \"10-14 years\" means everyone who is at least 10 years old and less than 15 years old and is represented as `P10Y--P15Y`.\n\nDurations define the amount of time between two time points. These durations are represented in the form `P[n]Y[n]M[n]DT[n]H[n]M[n]S` or `P[n]W`. The `[n]` is replaced by the value for each of the time elements that follow the `[n]` and the letters have the meaning:\n\n* `P` is the duration designator (for period) placed at the start of the duration representation.\n	* `Y` is the year designator that follows the value for the number of years.\n	* `M` is the month designator that follows the value for the number of months.\n	* `W` is the week designator that follows the value for the number of weeks.\n	* `D` is the day designator that follows the value for the number of days.\n* `T` is the time designator that precedes the time components of the representation.\n	* `H` is the hour designator that follows the value for the number of hours.\n	* `M` is the minute designator that follows the value for the number of minutes.\n	* `S` is the second designator that follows the value for the number of seconds. (Note that seconds can be a decimal in this format to allow for milliseconds)\n\nFor example, `P3Y6M4DT12H30M5S` represents a duration of _three years, six months, four days, twelve hours, thirty minutes, and five seconds_.\n\nDate and time elements including their designator may be omitted if their value is zero, and lower-order elements may also be omitted for reduced precision. For example, `P23DT23H` and `P4Y` are both acceptable duration representations. However, at least one element must be present, thus `P` is not a valid representation for a duration of _0 seconds_. `PT0S` or `P0D`, however, are both valid and represent the same duration.\n\nNote that the designator `M` is used for both months and minutes, but this is not ambiguous because the minutes designator must be preceded by the time designator `T`. For example `P1M` is _one month_, while `PT1M` is _one minute_.\n\nContent for this code system is adapted from the definition in the IHE-ADX profile: https://www.ihe.net/uploadedFiles/Documents/QRPH/IHE_QRPH_Suppl_ADX.pdf (Appendix 8K Representation of Age Groups in ADX). In addition, the code system definition is adapted from similar content published as part of the SANER implementation guide. See [Age Range Coding System](https://hl7.org/fhir/uv/saner/CodeSystem-IHE-ADX-agerange.html)."] ; #
      fhir:jurisdiction ( [
        ( fhir:coding [
    fhir:system [ fhir:v "http://unstats.un.org/unsd/methods/m49/m49.htm"^^xsd:anyURI ] ;
    fhir:code [ fhir:v "001" ]     ] )
      ] ) ; #
      fhir:purpose [ fhir:v "This code system is defined to support consistent, unambiguous, human- and machine-readable representations of time periods. A primary intended use case is to support the specification of value sets of age ranges for the purposes of data stratification (also referred to as disaggregation)."] ; #
      fhir:copyright [ fhir:v "Adapted from content published by IHE Copyright (c) 2015 [IHE International, Inc](http://www.ihe.net/Governance/#Intellectual_Property). Used here according to the terms of the [CC BY 4 License](https://creativecommons.org/licenses/by/4.0/). Makes use of duration definitions as defined in the [ISO 8601](https://www.iso.org/iso-8601-date-and-time-format.html) specification."] ; #
      fhir:caseSensitive [ fhir:v true] ; #
      fhir:valueSet [
    fhir:v "http://terminology.hl7.org/ValueSet/iso-8601-derived-periods"^^xsd:anyURI ;
    fhir:link <http://terminology.hl7.org/ValueSet/iso-8601-derived-periods>
      ] ; #
      fhir:compositional [ fhir:v true] ; #
      fhir:content [ fhir:v "not-present"] . #