OHDSI/CommonDataModel

Issues somebody may already be working on are listed last. List everything by date

• Episode. episode_object_concept_id should not be a required field

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  OHDSI/CommonDataModel#823 · Opened Oct 30, 2026

• Lots of broken links in the episode table docs

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 1/5 Under an hour Newbie friendliness 74/100

  OHDSI/CommonDataModel#802 · 1 comment · Opened Aug 13, 2026

• check marks and Xs on front page, tooling support section, need to be updated, right now they look like r code

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  OHDSI/CommonDataModel#799 · Opened Jul 30, 2026

• Changes to quarto docs

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#797 · 1 comment · Opened Jul 29, 2026

• drug_concept_id - "... ETL to provide as much information as possible from the data" - where to cut off validity?

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 35/100

  OHDSI/CommonDataModel#785 · 1 comment · Opened May 5, 2026

• Table PERSON vs EPISODE) foreign key columns to match exactly

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 2/5 1-3 hours Newbie friendliness 65/100

  OHDSI/CommonDataModel#784 · Opened Apr 18, 2026

• Add Databricks DDL for OMOP CDM v5.4

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 68/100

  OHDSI/CommonDataModel#781 · 1 comment · 2 reactions · Opened Mar 26, 2026

• Constraints for table `concept_relationship` (primary key and maybe coherence of start and end dates)

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#771 · Opened Feb 9, 2026

• Missing primary key for table `death`?

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 30/100

  OHDSI/CommonDataModel#770 · Opened Feb 8, 2026

• remove this file

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 1/5 Under an hour Newbie friendliness 45/100

  OHDSI/CommonDataModel#763 · Opened Nov 14, 2025

• Add suggested "ETL Helper Columns" to the CDM website

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#760 · 2 comments · Opened Oct 9, 2025

• 'Required' terminology

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Documentation

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#757 · 3 comments · Opened Sep 1, 2025

• Biobank data into OMOP CDM

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#756 · 3 comments · Opened Aug 27, 2025

• What to put in the Metadata table?

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#755 · 1 comment · Opened Aug 19, 2025

• Forum link on Ask a Question page is dead

  May be free again A pull request for this issue was closed without being merged. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Bug

  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  OHDSI/CommonDataModel#754 · 1 comment · Opened Aug 15, 2025

• Adding value_source_concept_concept_id field to the Measurement and Observation table

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  2025 Symposium Proposal

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  OHDSI/CommonDataModel#751 · 1 comment · Opened Jul 28, 2025

• Unite measurement into observation (or observation into measurement)

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#750 · 1 comment · Opened Jul 25, 2025

• Death table PK

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#741 · 1 comment · Opened Apr 10, 2025

• Missing verbiage from CDM specification v5.4 Care Site table

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  OHDSI/CommonDataModel#740 · Opened Apr 8, 2025

• Start maintaining tables that are not fully standardized

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Documentation

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#737 · 1 comment · Opened Mar 28, 2025

• Move away from arbitrary heuristic concept domain assignment model to an extensible cascading ruleset

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#734 · 1 comment · Opened Mar 11, 2025

• Remove DEA and NPI from PROVIDER table

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Major Change Proposal

  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  OHDSI/CommonDataModel#732 · 3 comments · Opened Mar 5, 2025

• Update OHDSI tooling page with all tables and fields

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Documentation

  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  OHDSI/CommonDataModel#731 · Opened Mar 5, 2025

• Add WIDE_MAPPING table

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Minor Change Proposal

  Difficulty 5/5 Over a week Newbie friendliness 20/100

  OHDSI/CommonDataModel#728 · 1 reaction · Opened Feb 18, 2025

• Drop table SOURCE_TO_CONCEPT_MAP

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Major Change Proposal

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#727 · 3 comments · Opened Feb 15, 2025

• Drop table COHORT_DEFINITION

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Major Change Proposal

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#725 · 3 comments · Opened Feb 14, 2025

• Field note_nlp."offset" should be integer, not varchar

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#723 · Opened Jan 30, 2025

• errors in inst/csv/OMOP_CDMv6.0_Field_Level.csv

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  OHDSI/CommonDataModel#722 · 3 comments · Opened Jan 8, 2025

• Update documentation: remove misleading info on dose_era

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 1/5 Under an hour Newbie friendliness 45/100

  OHDSI/CommonDataModel#721 · Opened Dec 10, 2024

• swift data and healthkit (apple) omop cmd compatible

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 15/100

  OHDSI/CommonDataModel#720 · 1 comment · Opened Nov 19, 2024

• Support for Python

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#715 · 2 comments · Opened Sep 18, 2024

• FK Constraints in DuckDB

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#713 · Opened Sep 13, 2024

• Determine which items from v6.0 are potentially valid for v5-series

  May be free again @MelaniePhilofsky claimed this 790 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OHDSI/CommonDataModel#710 · 1 comment · 1 assignee · Opened Sep 3, 2024

• How to Calculate Drug Dose page; definition of Drug_Exposure quantity field

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Drug Dose Discussion

  Difficulty 1/5 Under an hour Newbie friendliness 25/100

  OHDSI/CommonDataModel#709 · 16 comments · Opened Aug 26, 2024

• Drug quantity convention example

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Drug Dose Discussion

  Difficulty 3/5 1-2 days Newbie friendliness 42/100

  OHDSI/CommonDataModel#708 · 3 comments · Opened Aug 26, 2024

• unresolvable fk cycles between concept and concept_class

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Question

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#706 · 3 comments · 1 reaction · Opened Aug 7, 2024

• Instructions for using sqlite DDLs for non-R users

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Bug Community Contribution

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#693 · 4 comments · 5 reactions · Opened May 28, 2024

• drug dose update

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Drug Dose Discussion

  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  OHDSI/CommonDataModel#691 · 2 comments · Opened May 22, 2024

• Create model for dissecting the sig field into computable structured data

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Drug Dose Discussion

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  OHDSI/CommonDataModel#689 · 14 comments · Opened May 11, 2024

• Convention for patients "still in hospital"

  May be free again @clairblacketer claimed this 914 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Proposal

  OHDSI/CommonDataModel#698 · 5 comments · 1 assignee · Opened Apr 25, 2024

• Is DEVICE_EXPOSURE.unique_device_id only related to the devices regulated by the FDA?

  May be free again @clairblacketer claimed this 921 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Proposal

  OHDSI/CommonDataModel#677 · 5 comments · 1 assignee · Opened Apr 22, 2024

• CDM Source

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  General Convention

  Difficulty 2/5 1-3 hours Newbie friendliness 25/100

  OHDSI/CommonDataModel#674 · 5 comments · Opened Apr 19, 2024

• How to store family history in the OBSERVATION table

  May be free again @MelaniePhilofsky claimed this 930 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Documentation

  OHDSI/CommonDataModel#656 · 4 comments · 1 assignee · Opened Apr 16, 2024

• Clarity on the definition of "Case management visit" in the CDM documentation

  May be free again @MelaniePhilofsky claimed this 930 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Documentation

  OHDSI/CommonDataModel#648 · 3 comments · 1 assignee · Opened Apr 12, 2024

• How to store the reason of drug discontinuation in DRUG_EXPOSURE.stop_reason field

  May be free again @clairblacketer claimed this 934 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OHDSI/CommonDataModel#644 · 2 comments · 1 assignee · Opened Apr 11, 2024

• ERD image is not correct. concept_synonym table only has three rows. not 7 as ERD digram suggests

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Bug

  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  OHDSI/CommonDataModel#619 · 2 comments · Opened Feb 16, 2024

• Do a landscape assessment of the tables to determine if general conventions of the model are followed

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  OHDSI/CommonDataModel#616 · 1 comment · Opened Feb 6, 2024

• Add DDL for Stem table.

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  Enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  OHDSI/CommonDataModel#607 · 2 comments · Opened Jan 4, 2024

• Multiple Death Records Due to Death_type or Cause - Version 5.4

  May be free again @RogerJCarlson claimed this 1153 days ago, and no pull request is open. Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel

  OHDSI/CommonDataModel#758 · 6 comments · 1 reaction · 1 assignee · Opened Aug 17, 2023

• [Proposal] Add "event_id" and "event_field_concept_id" columns to PROCEDURE_OCCURRENCE

  Open

  ⋯Report a problem with this issue

  • Is something wrong?

  • Already taken
  • Not beginner-friendly
  • Stale or invalid
  • Something else…
  • Send Cancel
  2025 Symposium Proposal

  Difficulty 5/5 Over a week Newbie friendliness 28/100

  OHDSI/CommonDataModel#569 · 5 comments · Opened May 3, 2023