C-CDA on FHIR
2.0.0-ballot - STU 2 Ballot

C-CDA on FHIR, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 2.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/ccda-on-fhir/ and changes regularly. See the Directory of published versions

## ConceptMap: C-CDA NullFlavor to FHIR Data Absent Reason

Official URL: http://hl7.org/fhir/us/ccda/ConceptMap/CF-NullFlavorDataAbsentReason | Version: 2.0.0-ballot
Standards status: Trial-use | Computable Name: CCDAtoFHIRNullFlavorDataAbsentReason

C-CDA NullFlavor to FHIR Data Absent Reason. Adapted from https://hl7.org/fhir/R4/cm-data-absent-reason-v3.html but several key changes have been made. Note that this prior concept map (from R4) is no longer included in current FHIR build.

Mapping from NullFlavor to DataAbsentReason

Group 1 Mapping from NullFlavor to DataAbsentReason

Source Code | Relationship | Target Code | Comment
NI (NoInformation) | maps loosely to | unknown | When the item is not required, US CORE guidance is to omit the element and not include data-absent-reason. When the item is required, US CORE guidance is to use unknown as the broadest concept
OTH (other) | maps to wider concept | unsupported |
NINF (negative infinity) | is equivalent to | negative-infinity (Negative Infinity (NINF)) |
PINF (positive infinity) | is equivalent to | positive-infinity (Positive Infinity (PINF)) |
MSK (masked) | is equivalent to | masked |
NA (not applicable) | is equivalent to | not-applicable |
UNK (unknown) | maps to wider concept | unknown |
ASKU (asked but unknown) | is equivalent to | asked-unknown (Asked But Unknown) |
NAV (temporarily unavailable) | is equivalent to | temp-unknown (Temporarily Unknown) |
NASK (not asked) | is equivalent to | not-asked |
TRC (trace) | maps to wider concept | unsupported |
NP (not present) | maps to wider concept | unknown |