DICOM PS3.3 2021e - Information Object Definitions
A.34.7.4.7 Waveform Annotation Module

For Concept Name Code Sequence (0040,A043) in the Waveform Annotation Sequence (0040,B020) DCID 3339 “Electrophysiology Annotations” shall be used.

DICOM PS3.3 2021e - Information Object Definitions