Generated Narrative: ValueSet mccod-yes-no-unknown 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 Code Display Y Yes N No Include these codes as defined in http://terminology.hl7.org/CodeSystem/data-absent-reason version ?1.0.0 Code Display Definition asked-unknown Asked But Unknown The source was asked but does not know the value.
Asia eHealth Information Network (AeHIN)
Reusable value set for binary (Yes/No/Unknown) responses on the WHO MCCoD Frame B questions. Used consistently across all Frame B Observations that carry a Yes/No/Unknown answer. - Yes → HL7 v2-0136 #Y - No → HL7 v2-0136 #N - Unknown → data-absent-reason #asked-unknown (the question was asked but the answer is not known) This pattern follows standard FHIR practice for representing unknown responses without creating unnecessary local code systems.
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