---
title: "GET /cohort_definition"
method: GET
path: "/cohort_definition"
tags: ["cohort_definitionController"]
---

# GET /cohort_definition

`GET /cohort_definition`

## Response `200`

Array of cohort_definition instances

- CohortDefinitionWithRelations[]
  - `cohort_definition_id` number
  - `cohort_definition_name` string
  - `cohort_definition_description` string
  - `definition_type_concept_id` number
  - `cohort_definition_syntax` string
  - `subject_concept_id` number
  - `cohort_initiation_date` string, date-time

---

[API](https://skmtc.net/ohdsi/apis/data-connection.md) · [All operations](https://skmtc.net/ohdsi/apis/data-connection/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ohdsi/data-connection/versions/b5ead99a1d44/schema)