Unsp fx head of unsp femur, subs for clos fx w nonunion

This code signifies a femoral head fracture that has not healed properly (nonunion) and the specific side (left or right) was not documented. This diagnosis is for a patient who is receiving follow-up care for a previously sustained closed fracture of the femoral head.

Use this code when a patient presents for ongoing treatment of a femoral head fracture that has failed to unite, and the initial injury was a closed fracture. This applies to subsequent encounters where the laterality of the fracture was not specified in the medical record.

• Ensure documentation clearly states "nonunion" and that the fracture was initially closed.
• Verify that the encounter is for follow-up care, not the initial treatment.
• Only use this code when the laterality (left or right femur) is explicitly unspecified in the medical record.