This page is part of the C-CDA on FHIR Implementation Guide (v2.0.0: STU 2) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Change Log

2.0.0 (Current Publication)

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, andSupply.
• 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