US Core Implementation Guide

1. General requirements

   Required search and read capabilities, content types and security expectations for US Core servers.

2. Must Support

   How must-support, missing data and data-absent-reason apply to elements.

3. US Core Patient

   Race, ethnicity, birth sex and gender identity extensions; identifier and name requirements.

4. Condition profiles

   Problems and health concerns, encounter diagnoses, and clinical status.

5. Observation profiles

   Laboratory results with LOINC, vital signs, smoking status and SDOH assessments.

6. Medication profiles

   MedicationRequest and MedicationDispense using RxNorm.

7. Encounter and Coverage

   Encounter and Coverage profile requirements.

8. Clinical notes

   DocumentReference and DiagnosticReport patterns for clinical notes.

9. USCDI

   How US Core versions map to USCDI data classes and elements.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.