Fx unsp part of neck of r femur, subs for clos fx w malunion

This code signifies a right femoral neck fracture that is currently undergoing treatment for a closed fracture, but the bone is healing in an abnormal or misaligned position. The "unspecified part" indicates that the precise location of the fracture within the femoral neck is not documented.

Apply this code when a patient presents for follow-up care of a previously diagnosed closed fracture of the right femoral neck, and the physician explicitly documents malunion as a complication of the healing process. This is appropriate for subsequent encounters where the malunion is being managed, but the fracture itself is not yet fully healed.

• Ensure documentation clearly states "malunion" and specifies the "right femur."
• Verify the encounter is for a "subsequent encounter" and the fracture was "closed."
• Do not use if the fracture is open, or if the malunion is a sequela (fully healed fracture with residual deformity).