Vital Records Common Library (VRCL) FHIR Implementation Guide
2.0.0 - STU2 United States of America flag

Vital Records Common Library (VRCL) FHIR Implementation Guide, published by HL7 International / Public Health. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/vr-common-library/ and changes regularly. See the Directory of published versions

ValueSet: Value Set - Yes No Unknown NotApplicable Vital Records

Official URL: http://hl7.org/fhir/us/vr-common-library/ValueSet/ValueSet-yes-no-unknown-not-applicable-vr Version: 2.0.0
Active as of 2026-06-01 Computable Name: ValueSetYesNoUnknownNotApplicableVitalRecords

This valueset contains the set of codes used to respond to any question that can be answered Yes, No, Unknown, or Not Applicable.

Mapping to IJE codes here.

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)

This value set includes codes based on the following rules:

  • Include these codes as defined in http://terminology.hl7.org/CodeSystem/v2-0136 version 📦2.9
    CodeDisplay
    YYes
    NNo
  • Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-NullFlavor version 📍2018-08-12
    CodeDisplay
    UNK unknown
    NA not applicable

 

Expansion

Expansion from tx.fhir.org based on:

This value set contains 4 concepts

SystemCodeDisplay (en)DefinitionJSONXML
http://terminology.hl7.org/CodeSystem/v2-0136  YYes
http://terminology.hl7.org/CodeSystem/v2-0136  NNo
http://terminology.hl7.org/CodeSystem/v3-NullFlavor  UNKunknown

Description:A proper value is applicable, but not known.

                       Usage Notes: This means the actual value is not known.  If the only thing that is unknown is how to properly express the value in the necessary constraints (value set, datatype, etc.), then the OTH or UNC flavor should be used.  No properties should be included for a datatype with this property unless:

                    
                       Those properties themselves directly translate to a semantic of "unknown".  (E.g. a local code sent as a translation that conveys 'unknown')
                       Those properties further qualify the nature of what is unknown.  (E.g. specifying a use code of "H" and a URL prefix of "tel:" to convey that it is the home phone number that is unknown.)
http://terminology.hl7.org/CodeSystem/v3-NullFlavor  NAnot applicable

Known to have no proper value (e.g., last menstrual period for a male).

Description of the above table(s).