Incomplete atypical femoral fracture, unspecified leg, 7thK

This code signifies an incomplete atypical femoral fracture that has not healed properly (nonunion) and is located in an unspecified leg. Atypical femoral fractures are stress fractures that occur in the subtrochanteric region or femoral shaft, often associated with long-term bisphosphonate use. The "incomplete" designation indicates the fracture does not extend through both cortices of the bone.

Use this code for a patient presenting for follow-up care of an incomplete atypical femoral fracture of an unspecified leg that has failed to unite. Documentation should clearly state "nonunion" and specify the fracture as "incomplete" and "atypical." This code is appropriate for subsequent encounters after initial treatment.

• Ensure documentation specifies "incomplete" and "atypical" to differentiate from other femoral fractures.
• Verify the encounter is for a "subsequent encounter for fracture with nonunion" and not an initial treatment or routine follow-up without nonunion.
• Do not use if the laterality (left or right leg) is specified; instead, select the appropriate laterality-specific code.