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

This code signifies a stress fracture affecting an unspecified ankle bone that is currently in the healing phase, but the healing process is progressing slower than expected. It indicates that the patient is receiving active treatment for this delayed union of the fracture.

Apply this code when documentation specifies a stress fracture of the ankle with delayed healing, and the patient is seen for follow-up care related to this ongoing treatment. This code is appropriate for subsequent encounters where the focus is on managing the delayed healing process, such as cast changes, physical therapy, or medication adjustments.

• Ensure documentation clearly states "delayed healing" or similar terminology for the stress fracture.
• Do not use this code for initial encounters or for fractures that are healing normally.
• Always sequence this code after any acute injury codes if applicable, or as the primary diagnosis if the delayed healing is the sole reason for the encounter.