Cohort Definitions

Define, curate, and export ICD cohorts—fast.

A lightweight, privacy‑friendly toolkit to build inclusion/exclusion criteria, preview matching codes, and export ready‑to‑run Python dictionaries for your analytics pipeline.

Why Cohort Definitions?

Point‑and‑click filters

Search ICD codes, select inclusions/exclusions, and shape your cohort without spreadsheets.

One‑click export

Generate clean Python or JSON like {"icd10": ["E11.9", "E11.65"]} ready for your scripts.

No log‑in browsing

Browse, compose and download code sets immediately; requires sign‑in only to save or share.

How it works

1. Search

Find ICD‑10/9, diagnosis, and procedure codes filtered by system and keywords.

2. Compose

Add inclusions and exclusions, preview the final set, and tag versions.

3. Export

Copy the generated Python/JSON, or download for use in ETL and analysis.

Get in touch

Have feedback or need a feature? Email hello@example.com.