# Get a test system and its tests

Operation ID: `graph.getDiagnosticTestSystem`

Get one test system plus the diagnostic tests that use it. Neo4j only.

## Public method

`getDiagnosticTestSystem`

Signature: `graph.getDiagnosticTestSystem(testSystemId, query)`

Return type: `Promise<DiagnosticTestSystemDetailsResponse>`

## Authentication

Classification: **AUTHENTICATED**

Schemes: `bearerAuth`

## Prerequisites

None documented.

## HTTP

`GET /diagnostic-tests/test-systems/{test_system_id}`

## Path parameters

| Name | Type | Required | Format | Allowed values | Default | Nullable | Description |
|---|---|---:|---|---|---|---:|---|
| `test_system_id` | `string` | Yes |  |  |  | No |  |

## Query parameters

| Name | Type | Required | Format | Allowed values | Default | Nullable | Description |
|---|---|---:|---|---|---|---:|---|
| `limit` | `integer` | No |  |  | `50` | No |  |
| `offset` | `integer` | No |  |  | `0` | No |  |

## Body parameters

None.

Request model: None.

## Request example

None declared in canonical OpenAPI.

## Success responses

| Status | Shape | Content type | Description |
|---|---|---|---|
| `200` | [`GetDiagnosticTestSystemResponse`](../models/GetDiagnosticTestSystemResponse.md) | application/json | Test system + tests using it |

## Success response examples

### 200

```json
{
  "test_system": {},
  "tests": [
    {
      "analyte_id": "810",
      "analyte_name": "1,25-Dihydroxyvitamin D (1,25-(OH)2D)",
      "complexity": "HIGH",
      "date_effective": "2002/03/22 00:00:00.000",
      "document_number": "K014030",
      "id": "f40168669505218707fefe48b5b56ba838917bb3cae99d75181f8f979a7a22db",
      "manufacturer": "DIASORIN 1",
      "qualifier1": "Serum",
      "qualifier2": "Quantitative",
      "specialty_id": "2",
      "specialty_name": "General Chemistry",
      "test_system_id": "2094",
      "test_system_name": "DIASORIN 1,25-DIHYDROXYVITAMIN D 125 I RIA KIT"
    }
  ],
  "total": 1
}
```

## Common errors

| Status | Shape | Content type | Description |
|---|---|---|---|
| `401` | [`graph.ErrorResponse`](../models/graph.ErrorResponse.md) | application/json | Authorization required — missing or invalid Bearer JWT |
| `404` | [`graph.ErrorResponse`](../models/graph.ErrorResponse.md) | application/json | No test system exists for test_system_id |
| `500` | [`graph.ErrorResponse`](../models/graph.ErrorResponse.md) | application/json | Internal server error |

## Error examples

### 401 — Missing or invalid access token

```json
{
  "error": "Authorization required"
}
```

### 404 — No test system matches test_system_id

```json
{
  "error": "Test system not found"
}
```

### 500 — Unexpected service failure (sanitized example)

```json
{
  "error": "Internal server error"
}
```

## NodeJS / TypeScript implementation

```ts
import { HCSDK } from "@healthcloudai/hc-sdk";
```

```ts
const testSystemId = "<TEST_SYSTEM_ID>";

const query = {
  "limit": 50,
  "offset": 0
};

const result = await graph.getDiagnosticTestSystem(testSystemId, query);
```

## cURL

```bash
curl -X GET \
  -H 'Authorization: Bearer <ACCESS_TOKEN>' \
  'https://dev-api-graph.health.cloud/diagnostic-tests/test-systems/%3CTEST_SYSTEM_ID%3E?limit=50&offset=0'
```

## Notes

None.

## Prepared Test Console scenario

No canonical scenario is currently associated.

## Real response

No approved real integration response is currently published. Unapproved candidates are never rendered as examples.