Unspecified fracture of unspecified metacarpal bone, subsequent encounter for fracture with malunion
Editorial Notes
A metacarpal fracture that heals improperly requires precise coding during follow-up care. Code S62.309P identifies an unspecified metacarpal fracture in a subsequent encounter where the bone has achieved malunion. The seventh character 'P' explicitly signals that the patient is receiving care for a complication of healing rather than routine recovery. Using this code correctly ensures the clinical story of delayed or faulty bone union is fully captured for medical necessity.