---
title: "Find Common Parent - Q24"
method: GET
path: "/search/common_parent"
tags: ["Search"]
---

# Find Common Parent - Q24

`GET /search/common_parent`

## Request

- Base URL: `https://cadsrapi.cancer.gov/si-api/v1`
- URL: `https://cadsrapi.cancer.gov/si-api/v1/search/common_parent`
- Auth: none declared
- TypeScript: <https://skmtc.dev/cancer/apis/ssis-api/docs/search/common_parent/get.ts> (a function with typed inputs; its response is checked against the schema)

Search for common data elements with a text query over the concept labels of concepts in the object class between NCIt and caDSR.

## Query parameters

- `input_ccode` string, required
- `comparator_ccode` string, required

## Response `200`

OK

- SearchcommonParentGETResponse
  - `results` CommonParent[], required
    - `pathType` string, required
    - `inputAndRecommendedOC` string, required
    - `inputCCode` string, required
    - `inputLabel` string, required
    - `comparatorCCode` string, required
    - `comparatorLabel` string, required
    - `stepFrom` string, required
    - `stepTo` string, required
    - `stepStartCCode` string, required
    - `stepStartLabel` string, required
    - `stepEndCCode` string, required
    - `stepEndLabel` string, required
  - `apiResponse` ApiResponse, required
    - `type` string, required: S Success, E Error, W Warning, I Info, A Abort
    - `message` string: Message text
    - `service` string: service that errorred
    - `time` string: Date and time of error
    - `ssnid` string: session id
    - `callStack` CallstackItem[]
      - `service` string, required
      - `flowStep` string, required

## Other responses

- `401`: Access Denied

---

[API](https://skmtc.dev/cancer/apis/ssis-api.md) - [All operations](https://skmtc.dev/cancer/apis/ssis-api/llms.txt) - [OpenAPI document](https://skmtc.dev/cancer/apis/ssis-api/revisions/1e6df122366f?raw)