Partial traumatic MCP amputation of thmb, sequela

This code describes the long-term effects or complications arising from a partial traumatic amputation of an unspecified thumb at the metacarpophalangeal (MCP) joint. This means a portion of the thumb, specifically at the joint connecting the thumb to the hand, was traumatically severed, and the patient is now being treated for issues directly related to that past injury.

Use this code when documenting follow-up care for a patient who previously sustained a partial traumatic MCP amputation of the thumb and is now presenting with residual problems such as chronic pain, stiffness, deformity, non-union, malunion, or nerve damage related to the original injury. This code is appropriate for encounters addressing the late effects or complications of the amputation, not the initial acute injury.

• Always use this code as a secondary diagnosis, following a code that describes the specific sequela being treated (e.g., chronic pain, scar contracture).
• Ensure documentation clearly links the current condition to the past partial traumatic MCP amputation of the thumb.
• The "S" at the end indicates "sequela," meaning it's for complications or conditions arising as a direct result of a previous injury.