Stress fracture, unsp ankle, subs for fx w malunion

This code signifies a stress fracture affecting an unspecified ankle, where the patient is receiving follow-up care for a fracture that has healed incorrectly (malunion). It indicates a chronic or ongoing issue related to the initial stress fracture, specifically addressing the complication of malunion.

This code is appropriate for encounters where a patient is being treated for complications arising from a previously diagnosed stress fracture of the ankle, and the primary focus of the encounter is the malunion. Documentation should clearly state "stress fracture," "ankle," "malunion," and indicate that this is a subsequent encounter for the fracture.

• Ensure documentation specifies "subsequent encounter" for the fracture care.
• Distinguish from initial encounter codes for stress fractures or nonunion complications.
• Verify laterality if specified in the documentation (e.g., right, left) to use a more specific code if available.