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curl -X GET "https://api.omophub.com/v1/vocabularies/concept-classes" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "data": [
    {
      "concept_class_id": "Clinical Finding",
      "concept_class_name": "Clinical Finding",
      "concept_class_concept_id": 404684003
    },
    {
      "concept_class_id": "Procedure",
      "concept_class_name": "Procedure",
      "concept_class_concept_id": 71388002
    },
    {
      "concept_class_id": "Substance",
      "concept_class_name": "Substance",
      "concept_class_concept_id": 105590001
    }
  ],
  "meta": {
    "request_id": "req_abc123",
    "timestamp": "2024-12-22T10:30:00Z",
    "vocab_release": "2025.1"
  }
}

​
Overview

This endpoint returns all OMOP concept classes, providing insights into the classification structure of medical concepts.

​
Query Parameters

​
vocab_release
string
Specific vocabulary release version (e.g., “2025.1”)

​
Response

​
success
boolean
required
Indicates whether the request was successful
​
data
array
required
Array of concept classes
​
meta
object
required
Response metadata
curl -X GET "https://api.omophub.com/v1/vocabularies/concept-classes" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "data": [
    {
      "concept_class_id": "Clinical Finding",
      "concept_class_name": "Clinical Finding",
      "concept_class_concept_id": 404684003
    },
    {
      "concept_class_id": "Procedure",
      "concept_class_name": "Procedure",
      "concept_class_concept_id": 71388002
    },
    {
      "concept_class_id": "Substance",
      "concept_class_name": "Substance",
      "concept_class_concept_id": 105590001
    }
  ],
  "meta": {
    "request_id": "req_abc123",
    "timestamp": "2024-12-22T10:30:00Z",
    "vocab_release": "2025.1"
  }
}

​
Notes

  • Returns all concept classes from the vocabulary database
  • Results are ordered alphabetically by concept class name
  • The concept_class_concept_id field contains the concept ID that represents this concept class