Getting Started - Business & Technical Audiences

Business Audience

PCS Implementation Guide Section Description
Business Overview General information about the standard, Support and
Planned Implementation work in 2026
Phase 1 - MVP Scope Describes new features & functionality added to PCS FHIR,
sorted by Message type

Includes message overview diagrams
CPHA3 - FHIR Field Level Mappings Details on how to map from CPHA3 to FHIR



Technical Audience

PCS Implementation Guide Section Description
Business Overview General information about the standard
Phase 1 - MVP Scope Describes new features & functionality added to PCS FHIR
FHIR Message Structure Overview Diagrams and links to FHIR Profiles
FHIR Profiles Details for each resource including supported fields, datatypes
usage notes, CPHA3 mappings, terminology references, etc
CPHA3 - FHIR Field Level Mappings Details on how to map from CPHA3 to FHIR
Technical Topics FHIR APIs, Operation overview, Error Handling,
Tooling, Profile links, etc
Terminology Overview and Maintenance as well as detailed lists
of all codes supported in the standard
Message Samples JSON and XML message instances
FHIR Home HL7 4.0 site to familiarize yourself with the base
FHIR specification, API's, technical guidance, etc