Nondisp fx of neck of MC bone, subs for fx w malunion

This code signifies a follow-up encounter for a patient who previously sustained a fracture in the neck of a metacarpal bone, excluding the thumb, where the fracture has healed in an imperfect or misaligned position. The initial injury was a nondisplaced fracture, meaning the bone fragments remained in their anatomical alignment at the time of the original injury. The current encounter addresses the complications arising from this malunion.

This code is appropriate when a patient presents for evaluation or treatment of a malunited fracture of a non-thumb metacarpal neck, after the initial healing period. This could include scenarios where the malunion is causing pain, functional impairment, or cosmetic concerns, and the patient is undergoing assessment for further intervention or management of the residual deformity.

• Ensure documentation clearly states "malunion" and specifies the "neck" of an "other metacarpal bone."
• Verify this is a "subsequent encounter" and not the initial treatment for the fracture.
• Distinguish from nonunion, which indicates a complete failure of the bone to heal.