Understand electronic case reporting (eCR) eICR Composition profile concepts for FHIR-based case reporting

Verified steps

1. Review the HL7 eCR FHIR IG (Electronic Case Reporting Implementation Guide) to understand the eICR (electronic Initial Case Report) Composition profile, which structures the case report document sent from a clinical care setting to a public health agency.
2. Identify the required sections of the eICR Composition — typically these include patient demographics, encounters, conditions/diagnoses, immunizations, laboratory results, medications, and travel history; verify the exact section codes against the current eCR IG.
3. Map clinical data from the EHR to the required FHIR resources that populate each Composition section, such as Patient, Encounter, Condition, Observation (lab), and MedicationRequest.
4. Assemble the Composition resource referencing a Bundle of type 'document' that contains the Composition plus all referenced resources, ensuring that all referenced resources are included in the Bundle.
5. Validate the assembled Bundle against the eICR Composition profile using a FHIR validator loaded with the eCR IG package.
6. Submit the eICR document Bundle to the appropriate intermediary (such as the AIMS platform or a public health agency endpoint) using the transport mechanism specified in the eCR IG (verify the current submission mechanism — it may be FHIR messaging, RESTful POST, or a routing intermediary).