| Full description | Displaced trimalleolar fracture of unspecified lower leg, 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 knee and lower leg (S80-S89) |
| Parent code | S82.853 — Displaced trimalleolar fracture of unspecified lower leg |