HL7 FHIR® Implementation Guide: Electronic Case Reporting (eCR) - US Realm, published by HL7 International / Public Health. This guide is not an authorized publication; it is the continuous build for version 2.1.2 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/case-reporting/ and changes regularly. See the Directory of published versions

Subscription Service

This guide assumes that EHRs or other systems will be able to generate timely notifications to begin the triggering process when resources containing codes in the trigger code value sets appear in the system. Those notifications would go to an associated system or process in clinical care that could begin the initial case reporting process, and would likely access more data from the EHR.

One approach for this is using the current FHIR R4 Subscription model, where a user would create a Subscription resource with a FHIR query string as the criteria. Subscription is being reworked for FHIR R5, and will be based on Topics, which are represented using a Topic resource that users can subscribe to and filter on. For this IG, we will specify the FHIR query strings needed for the current version of FHIR, and the Topic criteria that would be needed in a subsequent FHIR R5 implementation.

Topics:

Diagnosis_Problem

Condition?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-dxtc-example

Organism_Substance

Condition?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-ostc-example

Lab Order Test

ServiceRequest?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-lotc-example

Lab Obs Test Name

Observation?code:in=http://hl7.org/fhir/us/ecr/ValueSet/lrtc

Medications

MedicationAdministration?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-mrtc-example

MedicationDispense?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-mrtc-example

MedicationRequest?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-mrtc-example

MedicationStatement?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-mrtc-example

Immunization

Immunization?vaccineCode:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-mrtc-example

Suspected_Disorder

Condition?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-sdtc-example MedicationRequest?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-mrtc-example Observation?code:in=http://hl7.org/fhir/us/ecr/ValueSet/valueset-lotc-example