note

When a DiagnosticReport carries free-text content -- either a conclusion string or one or more presentedForm attachments -- a note row is created to preserve the unstructured clinical narrative. This is independent of the domain-routed rows (measurement, observation, procedure_occurrence) that are produced from the report's LOINC code and conclusionCode. A single DiagnosticReport may produce both a domain-routed row and a note row. No reference implementation currently maps DiagnosticReport.conclusion/presentedForm to the OMOP note table; omoponfhir's DocumentReference mapper is the closest reference.