Mapping from Data Absent Reason to http://terminology.hl7.org/ValueSet/v3-NullFlavor

ACTIVE. Published on 2023-09-05T18:01:02Z by HL7 Structured Documents Working Group (HL7 Structured Documents Working Group: http://hl7.org/Special/committ... ).

Group 1 Mapping from http://terminology.hl7.org/CodeSystem/data-absent-reason to http://terminology.hl7.org/CodeSystem/v3-NullFlavor

Source Code	Relationship	Target Code	Comment
unknown	maps to wider concept	NI (NoInformation)	In CDA, 'UNK' means 'a proper value is applicable, but not known.' Guidance has been to use this when the value is known to exist and to use the broader 'NI' when no specific information about why the value is unknown. FHIR's data absent reason of 'unknown' better maps to 'NI'.
asked-unknown (Asked But Unknown)	is equivalent to	ASKU (asked but unknown)
temp-unknown (Temporarily Unknown)	is equivalent to	NAV (temporarily unavailable)
not-asked	is equivalent to	NASK (not asked)
asked-declined (Asked But Declined)	maps to wider concept	UNK (unknown)
masked	is equivalent to	MSK (masked)
not-applicable	is equivalent to	NA (not applicable)
unsupported	maps to wider concept	NI (NoInformation)
as-text	maps to wider concept	OTH (other)
error	maps to wider concept	NAV (temporarily unavailable)
not-a-number (Not a Number (NaN))	maps to wider concept	OTH (other)
negative-infinity (Negative Infinity (NINF))	is equivalent to	NINF (negative infinity)
positive-infinity (Positive Infinity (PINF))	is equivalent to	PINF (positive infinity)
not-performed	maps to wider concept	NASK (not asked)
not-permitted	maps to wider concept	OTH (other)