Vocab WG July 30 meeting [CPT4 visits and postcoordination]

[aostropolets (Anna Ostropolets)]

Dear friends:

Please come to the July 30 noon EST Vocab WG meeting to discuss two vocabulary topics that brought multiple conversations in the community:

1. CPT4 visits
   What: CPT4 codes representing visits have been de-standardized and mapped to Visit domain (link, link, link, link)

2. Post-coordination for measurements in the OHDSI Vocabularies

What: some non-standard terms map to two concepts that live as a pair in different columns in OMOP CDM, example, link, link, link)

At the meeting, we hope to arrive at the resolution regarding the topics and make tangible plans.

[aostropolets (Anna Ostropolets)]

You can find the meeting recording here and meeting slides here.

We discussed two proposals for February 2025 release:

1. CPT4

• Make CPT4/HCPCS ‘visit-related’ codes Standard
  Proposed domain for CPT4 codes – Procedure (align with our def of Procedure domain + aligns with pre-2023 domain assignment).

• Create ‘Has related visit’ relationship, so the ETL can create visits out of these CPT/HCPCS concepts, but be able to preserve original concept as standard in another domain.

2. Post-coordinated labs and syndromes

• Rollback post-coordination effort on measurement-related disorders
  Source diagnosis codes map to nearest mapping in SNOMED
  SNOMED structure preserved without de-standardizing clinical finding concepts