Implement US Core 7.0.0 Screening and Assessment Observation profile to record and query social, behavioral, and functional health screening responses

Verified steps

1. Identify the specific US Core 7.0.0 screening instrument being used (e.g., PHQ-9, GAD-7, AUDIT-C) and locate the corresponding LOINC panel and component codes for the questionnaire items
2. Create FHIR Observation resources conforming to the US Core Screening and Assessment Observation profile; set Observation.category to survey (http://terminology.hl7.org/CodeSystem/observation-category) and include the SDOH category extension if applicable
3. Populate Observation.code with the LOINC instrument panel code, Observation.component[] with individual question/answer pairs, and Observation.value[x] with the total score or summary finding
4. Set all US Core 7.0.0 must-support elements including status, category, code, subject, effective[x], and value[x]; confirm hasMember references to component Observations if using a panel structure
5. POST the Observation resources to the FHIR server and verify retrieval using GET /Observation?patient={id}&category=survey&code={panel-LOINC}
6. Validate the resources against the US Core Screening and Assessment profile using $validate and resolve any must-support obligation warnings