Pathological fracture, unsp femur, subs for fx w malunion

This code signifies a pathological fracture of an unspecified femur that has healed improperly, resulting in a malunion. A pathological fracture occurs due to a disease process weakening the bone, rather than from trauma. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase of the malunion.

Apply this code when a patient presents for follow-up care of a previously diagnosed pathological fracture of the femur that has healed in an unsatisfactory position. Documentation should clearly state "pathological fracture," "femur," "malunion," and indicate that the encounter is for ongoing management or assessment of the healing fracture.

• Ensure documentation specifies "pathological fracture" to differentiate from traumatic fractures.
• Verify the encounter type is "subsequent" for ongoing care, not initial treatment or sequela.
• Code first the underlying condition causing the pathological fracture, if known and still active.