Incomplete atypical femoral fracture, unspecified leg, init

This code signifies an incomplete stress fracture of the femur that exhibits atypical characteristics, such as a transverse or short oblique fracture pattern with minimal or no comminution, often occurring in the subtrochanteric region or femoral shaft. It represents a partial break in the bone, not extending through the entire cortex.

Use this code for a patient presenting with an incomplete atypical femoral fracture of an unspecified leg, particularly when it's the first time they are receiving active treatment for this specific fracture. This diagnosis is often associated with long-term bisphosphonate therapy or other anti-resorptive medications. Documentation should clearly state "incomplete," "atypical," and the "initial encounter" for treatment.

• Ensure documentation specifies "incomplete" and "atypical" to differentiate from complete or typical femoral fractures.
• Verify the encounter is for the initial treatment of the fracture; subsequent encounters would use a different seventh character.
• If the laterality (left or right leg) is documented, use the more specific code (M84.753D or M84.753S).