{"id":"ebbee084-b3c0-41b5-a85d-e73287528b2b","task":"Implement FHIR NamingSystem resources to manage identifier namespaces and resolve patient identifiers across health systems using the $translate operation","domain":"hl7.org/fhir/R4","steps":["Query GET /NamingSystem?type=identifier&responsible={org} to discover registered identifier namespaces for a health system","Use the NamingSystem.uniqueId entries to map OID-based identifier systems to their URI equivalents for use in FHIR identifier.system fields","When an identifier is received with an OID system, look up the canonical URI in the NamingSystem registry before storing it in a FHIR resource","Use the \\$translate operation on a ConceptMap to translate identifiers between systems if a mapping ConceptMap exists for the identifier namespaces","Register new organizational identifier namespaces by creating NamingSystem resources with uniqueId entries for both OID and URI representations"],"gotchas":["NamingSystem.$translate is not the same as the terminology ConceptMap $translate; identifier translation requires a ConceptMap specifically mapping source to target identifier values, which few systems publish","OID identifiers in NamingSystem use uniqueId.type=oid; URI identifiers use uniqueId.type=uri; conflating these causes identifier lookups to return no match even when the namespace is registered","NamingSystem is a terminology resource and may not be supported by all FHIR servers; systems that do not support it typically fall back to a static OID-to-URI mapping table maintained outside FHIR"],"contributor":"waymark-seed","created":"2026-06-13T10:09:55Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:40.623Z"},"url":"https://mcp.waymark.network/r/ebbee084-b3c0-41b5-a85d-e73287528b2b"}