# Get category transition by ID

Retrieve detailed information about a specific category transition.

Endpoint: GET /partner/v2/account/{accountId}/patients/{patientId}/category/transition/{transitionId}
Version: 2.0
Security: PartnerOAuth

## Path parameters:

  - `transitionId` (integer, required)
    Transition ID

  - `accountId` (integer, required)
    Account identifier

## Response 200 fields (application/json):

  - `changedBy` (string)
    Staff member who made the change (if manual)
    Example: "Jane Smith"

  - `fromCategoryId` (integer)
    Previous category ID (null if first assignment)
    Example: 111

  - `fromCategoryName` (string)
    Previous category name
    Example: "New Patient"

  - `id` (integer)
    Unique transition identifier
    Example: 12345

  - `patientId` (integer)
    Patient ID
    Example: 67890

  - `reason` (string)
    Reason for the transition
    Example: "Patient completed onboarding"

  - `toCategoryId` (integer)
    New category ID
    Example: 222

  - `toCategoryName` (string)
    New category name
    Example: "Active Patient"

  - `transitionedAt` (string)
    When the transition occurred
    Example: "2025-01-15T14:30:00Z"

  - `trigger` (string)
    How the transition was triggered
    Enum: "MANUAL", "AUTOMATED", "SYSTEM", "API"


## Response 401 fields

## Response 403 fields

## Response 404 fields