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 to FHIR No Known Allergies

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

C-CDA Allergy Intolerance Observation value to FHIR code for No Known Allergies

Mapping from https://vsac.nlm.nih.gov/valueset/2.16.840.1.113883.3.88.12.3221.6.2/ to https://vsac.nlm.nih.gov/valueset/2.16.840.1.113762.1.4.1186.8/

Group 1 Mapping from SNOMED CT (all versions) to SNOMED CT (all versions)

Source Code | Relationship | Target Code | Comment
414285001 (Allergy to food) | is equivalent to | 429625007 (No known food allergy) |
416098002 (Allergy to drug) | is equivalent to | 409137002 (No known drug allergy) |
419199007 (Allergy to substance) | is equivalent to | 716186003 (No known allergy) |
235719002 (Intolerance to food) | (not mapped) | Best practices from CDA are not to have this as the negated value, comments welcome if this should be mapped.
418038007 (Propensity to adverse reactions to substance) | (not mapped) | Best practices from CDA are not to have this as the negated value, comments welcome if this should be mapped.
418471000 (Propensity to adverse reactions to food (finding)) | (not mapped) | Best practices from CDA are not to have this as the negated value, comments welcome if this should be mapped.
419511003 (Propensity to adverse reactions to drug) | (not mapped) | Best practices from CDA are not to have this as the negated value, comments welcome if this should be mapped.
420134006 (Propensity to adverse reaction) | (not mapped) | Best practices from CDA are not to have this as the negated value, comments welcome if this should be mapped.