Pathological fracture, hip, unsp, subs for fx w malunion

This code signifies a fracture of the hip that occurred due to an underlying disease process, rather than trauma, and has healed improperly. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase, and "malunion" specifies that the bone has healed in a deformed or misaligned position.

Use this code for follow-up encounters where a patient is being treated for a pathological hip fracture that has resulted in malunion. Documentation should clearly state the pathological nature of the fracture, the anatomical site (hip), and the presence of malunion during the healing period. This code is appropriate when the patient is seen for cast changes, follow-up X-rays, or physical therapy related to the malunited fracture.

• Ensure documentation explicitly states "pathological fracture" and "malunion" of the hip.
• Verify the encounter type is "subsequent" for fracture care; do not use for initial treatment or sequelae.
• Code the underlying pathological condition (e.g., osteoporosis, neoplasm) first, followed by this fracture code.