Bent bone of left ulna, subs for opn fx type I/2 w malunion

This code describes a left ulnar fracture that has healed in an abnormal position (malunion), specifically involving a bent bone. It indicates that the initial injury was an open fracture of either Type I or Type II, and the patient is now receiving follow-up care for this complication.

Apply this code when documenting ongoing treatment or evaluation of a patient whose left ulnar open fracture (Type I or II) has resulted in a bent bone due to malunion. This would be used for subsequent visits after the initial fracture care, such as for physical therapy, re-evaluation, or planning for corrective surgery.

• Ensure documentation clearly specifies "bent bone" as the nature of the malunion.
• Verify the original fracture was an open Type I or Type II of the ulna.
• This "Q" seventh character indicates a subsequent encounter for a healing fracture with a complication.