Path fracture, unsp finger(s), subs for fx w nonunion

This code signifies a fracture in an unspecified finger that occurred due to an underlying disease process, rather than trauma. It specifically indicates that the patient is in a subsequent phase of care for this pathological fracture, and the fracture has failed to heal properly (nonunion).

Apply this code when documentation confirms a pathological fracture of any finger, and the patient is presenting for ongoing management of a nonunion. This typically involves follow-up appointments, imaging, or interventions aimed at addressing the unhealed fracture. Documentation should clearly state "pathological fracture," "nonunion," and specify the finger(s) if known, or "unspecified finger(s)" if not.

• Ensure the documentation explicitly states "pathological fracture" to differentiate from traumatic fractures.
• Confirm "nonunion" is documented, not just delayed healing, as these have different coding implications.
• This "K" seventh character indicates a subsequent encounter for a nonunion; do not use for initial treatment or routine healing.