{"asOf":"2026-08-31T19:37:00.696Z","count":2,"items":[{"system":"http://fhir-registry.smarthealthit.org/CodeSystem/service-type","code":"covid19-immunization","display":"COVID-19 Immunization Appointment"},{"system":"http://terminology.hl7.org/CodeSystem/service-type","code":"57","display":"Immunization"}],"publishers":["smart-example"]}