(for NoteNlp:) The date of the note processing.Useful for data provenance.

(for Observation:) The date of the observation.

(for ProcedureOccurrence:) The date on which the Procedure was performed.

(for Measurement:) The date of the Measurement.

(for Note:) The date the note was recorded.

(for Specimen:) The date the specimen was obtained from the Person.

measurement.measurement_date#74 AS date

procedure_occurrence.procedure_date#169 AS date

note.note_date#95 AS date

note_nlp.nlp_date#116 AS date

observation.observation_date#124 AS date

specimen.specimen_date#184 AS date