Oth fx head/neck of unsp femur, subs for clos fx w malunion

This code signifies a follow-up encounter for a previously sustained fracture of the head or neck of the femur, where the specific location within the head/neck is not documented. The fracture was initially treated as a closed injury, and the bone has healed in an imperfect or misaligned position (malunion).

This code is appropriate for subsequent visits related to the management of a malunited closed fracture of the femoral head or neck, when the precise anatomical site (e.g., subcapital, transcervical) is not specified in the medical record. This would include encounters for assessment of the malunion, planning for corrective surgery, or ongoing conservative management of symptoms related to the malunion.

• Ensure documentation clearly states "malunion" and "subsequent encounter" for a closed fracture.
• If the specific location of the fracture within the femoral head or neck is documented, a more specific code from S72.0 would be appropriate.
• This code requires a 7th character "P" for subsequent encounter with malunion; do not use for initial care or routine follow-up without malunion.