# Search coverage criteria
URL: https://backworkhealth.com/docs/api/searchCriteria

Search through coverage criteria blocks (indications, limitations, documentation requirements) across active policies.

**Endpoint:** `GET /api/v1/coverage/criteria`

**Availability:** Live in production.

**Authentication:** API key in `Authorization: Bearer <key>` with the `read` scope.

Search through coverage criteria blocks (indications, limitations, documentation requirements) across active policies.

**Parameters**

* `q` (query, required): Search query for criteria text (max 500 characters)
* `section` (query): Filter by section type
* `policy_type` (query): Filter by policy type
* `jurisdiction` (query): Filter by MAC jurisdiction
* `cursor` (query): Pagination cursor from the previous response
* `limit` (query): Results per page

**Example request**

```bash
curl -X GET "https://backworkhealth.com/api/v1/coverage/criteria?q=diabetes&section=indications&policy_type=LCD" \
  -H "Authorization: Bearer $BACKWORK_API_KEY"
```

**Example response** (`200`)

```json
{
  "success": true,
  "data": [
    {
      "criteria_id": "string",
      "policy_id": "string",
      "policy_title": "string",
      "policy_type": "string",
      "jurisdiction": "string",
      "effective_date": "2026-01-15",
      "section": "string",
      "text": "string",
      "tags": [
        "string"
      ],
      "requires_manual_review": true,
      "confidence_score": "string",
      "policy": {
        "policy_id": "string",
        "title": "string",
        "policy_type": "string",
        "jurisdiction": "string",
        "effective_date": "2026-01-15",
        "applicability_scope": "shared_markets",
        "applicability_markets": [
          "string"
        ],
        "applicability_evidence": {
          "document_sha256": "string",
          "market_index_listings": [],
          "document_statements": []
        },
        "applicability_note": "string",
        "public_url": "https://backworkhealth.com/policy/L33831",
        "source_check": {
          "source_url": "https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?lcdid=33831",
          "last_fetched_at": "2026-01-15T10:30:00Z",
          "content_sha256": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
          "source_accuracy": []
        }
      },
      "applicability_scope": "shared_markets",
      "applicability_markets": [
        "string"
      ],
      "applicability_evidence": {
        "document_sha256": "string",
        "market_index_listings": [
          {}
        ],
        "document_statements": [
          {}
        ]
      },
      "applicability_note": "string"
    }
  ],
  "meta": {
    "request_id": "string",
    "timestamp": "2026-01-15T10:30:00Z",
    "pagination": {
      "cursor": "string",
      "has_more": true,
      "limit": 0
    },
    "search": {
      "query": "string",
      "section": "indications"
    },
    "filters": {
      "policy_type": "LCD",
      "jurisdiction": "string"
    },
    "attributions": {
      "disclaimer": "string",
      "cpt": "string",
      "loinc": "string",
      "cms": "string",
      "payer_data": "string",
      "negotiated_rates": "string"
    },
    "disclaimer": "string"
  }
}
```