Fracture of unsp part of neck of unspecified femur, sequela

This code signifies a long-term complication or residual effect stemming from a prior fracture of the femoral neck, where the specific location of the fracture on the neck and the side of the body (left or right) are not documented. It indicates that the acute phase of the original injury has passed, and the patient is now experiencing ongoing issues directly attributable to that past fracture.

Use this code when documenting conditions such as chronic pain, nonunion, malunion, avascular necrosis, or degenerative arthritis that are a direct consequence of a previously sustained, unspecified femoral neck fracture. This code is appropriate when the patient is presenting for treatment of these sequelae, and the initial fracture has healed or is in a stable, non-acute phase.

• Always assign an additional code to specify the nature of the sequela (e.g., M84.4x for malunion, M16.x for osteoarthritis).
• Ensure documentation clearly links the current condition to the past femoral neck fracture.
• Avoid using this code for acute or subacute fractures; refer to the appropriate S72.00x codes for active treatment of the fracture itself.