| Full description | Bent bone of unspecified ulna, subsequent encounter for open fracture type I or II with malunion |
| Billable | Yes |
| Chapter | Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88) |
| Section | Injuries to the elbow and forearm (S50-S59) |
| Parent code | S52.283 — Bent bone of unspecified ulna |