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

## Change Log

### 2.0.0 (Current STU Ballot)

Though feedback is welcome on any part of the IG, only changed content may be voted upon during an STU ballot. The following is a high-level list of changes since version 1.2.0 STU1.

New Resources / Guidance

- C-CDA → FHIR Encounters
- C-CDA → FHIR Notes
- C-CDA → FHIR Participation
- C-CDA → FHIR Results
- C-CDA → FHIR Social History
- C-CDA → FHIR Vitals
- FHIR → C-CDA Vitals
- GeneralGuidance
  - Missing Maps
  - FHIR Code → CDA Coding
  - Ranges of Physical Quantities
  - Comment → Annotation

Updated Mappings

During the 2023 & 2024 connectathons, several mappings were enhanced. These updates addressed gaps for fields required by C-CDA or USCDI and included non-controversial mappings. For guidance on handling unmapped fields, refer to the Missing Maps section.

- C-CDA → FHIR Medications - Added `approachSiteCode`, `maxDoseQuantity`, `administrationUnitCode`, `manufacturerOrganization`, `Drug Vehicle`, and`Supply`.
- C-CDA → FHIR Patient - Added guidance for `raceCode/originalText` as well as mappings for `religiousAffiliationCode`, `guardian`, `birthPlace`, `languageCommunication/modeCode`, `languageCommunication/proficiencyLevelCode`, and `providerOrganization`.
- C-CDA → Probelms - Added `Age Observation` and `Supporting Observations (e.g. Assessment Scale Observation)`.

Additionally, all highlighted examples have been converted to inline HTML to facilitate searching, resizing, and copy-pasting.

### 1.2.0 STU 1 (First Mapping Ballot)

- Mapping Background
- Bidirectional mappings for the following content:
  - Allergies
  - Immunizations
  - Medications
  - Patient
  - Problems
  - Procedures
- Structural Guidance
  - Identifiers
  - Time/Dates
  - Coding/CodeableConcept
  - Quantity
  - Provenance (high-level)
  - Name/Address/Telecom
  - Missing Data
  - Narrative Text