Which steps verify the integrity of a received CCDA?

• A. Validate XML against CCDA schema and confirm required sections
• B. Confirm required sections and verify source data consistency
• C. Validate XML against CCDA schema, confirm required sections, check patient identifiers, and verify source data consistency
• D. Check patient identifiers only

Answer: (C)

Ensuring data integrity for a received CCDA requires structural validation, completeness, identity verification, and data fidelity. Validating the XML against the CCDA schema confirms that the document adheres to the defined structure and syntax. Confirming required sections ensures the CCDA includes the essential clinical content needed for a complete record. Checking patient identifiers makes sure the document belongs to the correct patient, preventing mismatches. Verifying source data consistency helps ensure the information hasn’t been altered in transit and remains faithful to what the originating system produced. Together, these steps cover both the technical format and the substantive correctness of the data. The other options miss one or more of these critical checks, making them insufficient for verifying full integrity.