Atypical femoral fracture, unspecified, init

This code signifies a fracture of the femur that does not follow typical fracture patterns, often associated with long-term use of bisphosphonates. It represents the initial treatment or evaluation of such a fracture, which may present as a transverse or short oblique fracture of the femoral shaft with minimal or no trauma.

Use this code for a patient presenting with a newly diagnosed atypical femoral fracture where the specific location (e.g., subtrochanteric, diaphyseal) is not documented. This code is appropriate when the patient is receiving active treatment for the fracture, such as surgical repair or initial conservative management. Documentation should clearly state "atypical femoral fracture" and indicate it's the first time the patient is being seen for this specific injury.

• Ensure documentation specifies "atypical" to differentiate from other femoral fracture types.
• Do not use this code if the specific location of the atypical femoral fracture (e.g., subtrochanteric, diaphyseal) is known and documented; instead, use a more specific code from the M84.75- series.
• The "A" seventh character indicates an initial encounter for the fracture, meaning the patient is receiving active treatment.