# Update diagnostic result item

Partially updates an existing Diagnostic Result Item. Only provided fields will be updated.

Endpoint: PATCH /site/{siteId}/ahds/v1/diagnostic-result-item/{diagnosticResultItemId}
Version: 1.0
Security: bearer

## Path parameters:

  - `siteId` (number, required)
    Site identifier

  - `diagnosticResultItemId` (string, required)
    Diagnostic Result Item unique identifier (UUID)

## Request fields (application/json):

  - `diagnosticResultId` (string)
    Identifier of the parent diagnostic result this item belongs to.
    Example: "123e4567-e89b-12d3-a456-426614174000"

  - `extensions` (object)
    Vendor- or practice-specific extensions.

  - `isActive` (boolean)
    Whether this diagnostic result item is active.

  - `name` (string)
    Name of the diagnostic test component or analyte.

  - `notes` (string)
    Free-text notes or comments about this result item.

  - `observedAt` (string)
    Timestamp when the measurement or observation was made, if known.
    Example: "2025-01-01T00:00:00.000Z"

  - `qualifier` (string)
    Qualifier for the result (e.g., '', 'trace', 'positive').

  - `quantity` (object)
    Structured quantitative result, when applicable.

  - `quantity.value` (number, required)
    Numeric value

  - `quantity.unit` (string, required)
    Unit of measure

  - `quantity.system` (string)
    Unit system URI

  - `referenceRange` (object)
    Reference range for the result, if available.

  - `value` (string)
    Raw result value as provided by the source system.

## Response 200 fields (application/json):

  - `createdAt` (string, required)
    Timestamp when this item was created.
    Example: "2025-01-01T00:00:00.000Z"

  - `diagnosticResultId` (string, required)
    Identifier of the parent diagnostic result this item belongs to.
    Example: "123e4567-e89b-12d3-a456-426614174000"

  - `diagnosticResultItemId` (string, required)
    Canonical identifier for this diagnostic result item.
    Example: "123e4567-e89b-12d3-a456-426614174000"

  - `extensions` (object, required)
    Vendor- or practice-specific extensions.

  - `isActive` (boolean, required)
    Whether this diagnostic result item is active.

  - `name` (string, required)
    Name of the diagnostic test component or analyte.

  - `notes` (string, required)
    Free-text notes or comments about this result item.

  - `observedAt` (string, required)
    Timestamp when the measurement or observation was made, if known.
    Example: "2025-01-01T00:00:00.000Z"

  - `qualifier` (string, required)
    Qualifier for the result (e.g., '', 'trace', 'positive').

  - `quantity` (object, required)
    Structured quantitative result, when applicable.

  - `quantity.value` (number, required)
    Numeric value

  - `quantity.unit` (string, required)
    Unit of measure

  - `quantity.system` (string)
    Unit system URI

  - `referenceRange` (object, required)
    Reference range for the result, if available.

  - `updatedAt` (string, required)
    Timestamp when this item was last updated.
    Example: "2025-01-01T00:00:00.000Z"

  - `value` (string, required)
    Raw result value as provided by the source system.


## Response 400 fields

## Response 401 fields

## Response 404 fields