Stress fracture, left ulna, subs for fx w delay heal

This code signifies a stress fracture affecting the left ulna that is currently undergoing treatment, but the healing process is not progressing as expected. It indicates that the patient is receiving active care for the fracture, which has been previously diagnosed, and there is a documented delay in bone consolidation.

Apply this code when a patient presents for follow-up care of a previously diagnosed stress fracture of the left ulna, and the provider's documentation explicitly states "delayed healing" or similar terminology. This code is appropriate for subsequent encounters where the focus is on managing the ongoing, but slow, healing of the fracture.

• Ensure documentation clearly specifies "stress fracture" and not another type of fracture (e.g., pathological, traumatic).
• Verify the laterality is correctly identified as "left ulna."
• This "G" seventh character is for subsequent encounters with delayed healing; do not confuse it with initial encounters or subsequent encounters with routine healing.