Stress fracture, unsp site, subs for fx w delay heal

This code signifies a stress fracture at an unidentifiable anatomical location that is currently in a healing phase, but the healing process is progressing slower than expected. It indicates that the patient is receiving ongoing care for this specific fracture.

Use this code for follow-up encounters where a patient is being treated for a stress fracture of an unknown site, and the physician documents delayed union or non-union. Documentation should clearly state "stress fracture," "unspecified site," and "delayed healing" or similar terminology indicating a subsequent encounter for a fracture with healing complications.

• Ensure documentation specifies "stress fracture" and not another type of fracture.
• Verify the encounter is for ongoing treatment of the fracture, not the initial injury.
• Do not use if the specific anatomical site of the stress fracture is known; instead, use a more specific M84.3- code.