OHDSI

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

• create non interactive option for conceptSet codelist extraction tools

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  Difficulty 3/5 1-2 days Newbie friendliness 64/100

  OHDSI/Picard#156 · Opened Oct 30, 2026

• Episode. episode_object_concept_id should not be a required field

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

  OHDSI/CommonDataModel#823 · Opened Oct 30, 2026

• Esketamine incorrectly mapped to ketamine; + Orphans

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  bug RxE

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OHDSI/Vocabulary-v5.0#1312 · Opened Oct 30, 2026

• refactor custom + concept cohorts

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  OHDSI/CohortConstructor#780 · Opened Oct 30, 2026

• [ETL] Standardise file upload with the File Uploader component and allow users to download uploaded files

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  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  OHDSI/Data2Evidence#3624 · Opened Oct 30, 2026

  Maintainers usually reply within 1 day

• DRUG_STRENGTH.ingredient_concept_id references Precise Ingredient concepts for RxNorm Extension drugs (e.g. sodium oxybate 769935 instead of oxybate 37002370)

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  Difficulty 4/5 3-5 days Newbie friendliness 44/100

  OHDSI/Vocabulary-v5.0#1311 · Opened Oct 29, 2026

• copy cohorts without roundtrip for attributes

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OHDSI/CohortConstructor#778 · Opened Oct 29, 2026

• Models trained with normalize = FALSE fail in predictPlp() after save/load

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  Difficulty 2/5 1-3 hours Newbie friendliness 76/100

  OHDSI/PatientLevelPrediction#688 · Opened Oct 29, 2026

• New check: datetime field has time component

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  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  OHDSI/DataQualityDashboard#710 · Opened Oct 29, 2026

• New check: check if `date` and `datetime` fields correspond

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OHDSI/DataQualityDashboard#709 · Opened Oct 29, 2026

• startBeforeEnd ignores time component of datetime fields

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  Difficulty 2/5 1-3 hours Newbie friendliness 62/100

  OHDSI/DataQualityDashboard#708 · Opened Oct 29, 2026

• to consider `indexCohort`

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

  OHDSI/OmopIndices#70 · 1 comment · Opened Oct 29, 2026

• [ETL] Enhancement - Warn users when navigating away from cohort builder with unsaved changes

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  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  OHDSI/Data2Evidence#3622 · Opened Oct 29, 2026

  Maintainers usually reply within 1 day

• Print Friendly checks expressionLimit but renders qualfiedLimit

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  Difficulty 2/5 1-3 hours Newbie friendliness 75/100

  OHDSI/circe-be#242 · Opened Oct 29, 2026

• Support Circe Episode criteria (CDM 5.4)

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  Difficulty 3/5 1-2 days Newbie friendliness 57/100

  OHDSI/Capr#144 · Opened Oct 28, 2026

• plotTemporalSequence bug colours not different for plot

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

  OHDSI/CohortSymmetry#380 · 1 comment · Opened Oct 28, 2026

• Error when applying yearCohorts() to a cohort created with generateTargetDenominatorCohortSet()

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

  OHDSI/CohortConstructor#777 · Opened Oct 28, 2026

• BIGQUERY translate bigQueryLowerCase breaks scripts relying on case sensitivity.

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  Difficulty 3/5 1-2 days Newbie friendliness 56/100

  OHDSI/SqlRender#412 · Opened Oct 28, 2026

• Would be nice to be able to customise the shiny app with a _brand.yml file

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OHDSI/PhenotypeR#722 · Opened Oct 28, 2026

• [Cohort Builder] Axis selector blocked by warning screen

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  bug

  Difficulty 2/5 1-3 hours Newbie friendliness 62/100

  OHDSI/Data2Evidence#3614 · Opened Oct 27, 2026

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• review tests and coverage

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

  OHDSI/CohortSymmetry#378 · Opened Oct 26, 2026

• [Data exploration] Rename "Cohorts" tab to "Data exploration" and show unsaved changes warning when clicking it

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  OHDSI/Data2Evidence#3603 · Opened Oct 26, 2026

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• Add a button that links to the GitHub issue page to go alongside the Feedback form link

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  Difficulty 2/5 1-3 hours Newbie friendliness 70/100

  OHDSI/Atlas3#441 · Opened Oct 23, 2026

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• Count of compared phenotypes is off by 1 in the Performance tab

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  Difficulty 2/5 1-3 hours Newbie friendliness 58/100

  OHDSI/Pegasus#3 · Opened Oct 23, 2026

• Enable side-by-side comparison of evaluated phenotypes to understand performance trade-offs

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

  OHDSI/Pegasus#2 · 3 comments · Opened Oct 23, 2026

• Circe Standard 2.0: decomposable, composable cohort definitions (shared base + narrowing refinements)

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

  OHDSI/Circepy#58 · 1 comment · Opened Oct 23, 2026

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• concept_id 36275067 Rx Norm Extension- contains wrong ingredients

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  RxE

  Difficulty 4/5 3-5 days Newbie friendliness 43/100

  OHDSI/Vocabulary-v5.0#1310 · 1 comment · Opened Oct 23, 2026

• querySqlToAndromeda(appendToTable = TRUE) errors with "This ResultSet is closed" after appending

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  Difficulty 2/5 1-3 hours Newbie friendliness 82/100

  OHDSI/DatabaseConnector#346 · Opened Oct 22, 2026

• Add reusable logic to Atlas3

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

  OHDSI/Atlas3#438 · Opened Oct 22, 2026

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• Error when saving an updated cohort definition after adding a feature analysis

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  OHDSI/Atlas3#436 · 1 comment · Opened Oct 22, 2026

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• commit access so I can fix the other issue template?

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

  OHDSI/WaveformWG#12 · Opened Oct 22, 2026

• Add HADES GitHub Action to package

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

  OHDSI/Panoptes#1 · Opened Oct 22, 2026

• Issue when trying to download plot

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  Difficulty 3/5 1-2 days Newbie friendliness 53/100

  OHDSI/OmopViewer#428 · Opened Oct 22, 2026

• getOption(x = "PhenotypeR.incremenatl_save_path") typo

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  Difficulty 2/5 1-3 hours Newbie friendliness 52/100

  OHDSI/PhenotypeR#715 · Opened Oct 22, 2026

• Consider integrating this skill into a flow for phenotype statement refinement

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  OHDSI/StudyAgent#106 · Opened Oct 22, 2026

• [Process] How we prioritize WG work

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  wg-session-2026-10

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

  OHDSI/GIS#547 · Opened Oct 22, 2026

• [Tutorial] Debrief and fix list for next year

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  spec wg-session-2026-10

  Difficulty 1/5 Under an hour Newbie friendliness 53/100

  OHDSI/GIS#545 · Opened Oct 21, 2026

• [Pilot] AI-assisted recipe drafting on one source

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  catalog spike wg-session-2026-10

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

  OHDSI/GIS#544 · Opened Oct 21, 2026

• [Process] Contributor backlog with owners and a WG cadence

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  architecture wg-session-2026-10

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

  OHDSI/GIS#543 · Opened Oct 21, 2026

• [Vocabulary] One combined request to the vocabulary owners

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  vocabulary wg-session-2026-10

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

  OHDSI/GIS#542 · Opened Oct 21, 2026

• [Data] International scope: country shortlist and readiness checklist

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  catalog wg-session-2026-10

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

  OHDSI/GIS#541 · Opened Oct 21, 2026

• [Data] Selection criteria and a first batch of datasets for the catalog

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  catalog wg-session-2026-10

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

  OHDSI/GIS#540 · Opened Oct 21, 2026

• [Spec] Network routing with pgRouting (go/no-go)

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  architecture spec wg-session-2026-10

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

  OHDSI/GIS#539 · Opened Oct 21, 2026

• [Spec] Geometry over time and hierarchy

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  architecture spec wg-session-2026-10

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

  OHDSI/GIS#538 · Opened Oct 21, 2026

• [Spec] Raster join path

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  architecture spec wg-session-2026-10

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

  OHDSI/GIS#537 · Opened Oct 21, 2026

• [Spec] First derived-exposure operation: nearest or count_within

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  architecture spec wg-session-2026-10

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

  OHDSI/GIS#536 · Opened Oct 21, 2026

• [Check] Compare the submitted manuscript with the code and repositories

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  spec wg-session-2026-10

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

  OHDSI/GIS#535 · Opened Oct 21, 2026

• [Spec] gaiaDB function contract, versioning and releases

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  architecture spec wg-session-2026-10

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

  OHDSI/GIS#534 · Opened Oct 21, 2026

• [Spec] Provenance and stable variable ids; is person-id de-linking needed?

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  architecture spec wg-session-2026-10

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

  OHDSI/GIS#533 · Opened Oct 21, 2026