Greenstick fx shaft of left ulna, subs for fx w delay heal

This code signifies a greenstick fracture affecting the shaft of the left ulna, indicating an incomplete break where the bone bends and cracks on one side. The "G" suffix specifies that this is a subsequent encounter for the fracture, and the healing process is progressing slower than expected.

Apply this code when a patient presents for follow-up care of a previously diagnosed greenstick fracture of the left ulnar shaft, and documentation indicates delayed union or prolonged healing. This would include scenarios where the fracture site is still tender, shows incomplete callus formation on imaging, or the patient is experiencing persistent pain beyond the typical healing timeframe.

• Ensure documentation explicitly states "delayed healing" or similar terminology for the left ulnar shaft greenstick fracture.
• Verify that this is not the initial encounter for the fracture; look for previous encounter codes (A, D) in the patient's history.
• Confirm the specific bone (ulna) and side (left) are accurately documented.