| Full description | Puncture wound with foreign body of lower back and pelvis with penetration into retroperitoneum |
| Billable | No — use a more specific child code |
| Chapter | Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88) |
| Section | Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39) |
| Parent code | S31.04 — Puncture wound with foreign body of lower back and pelvis |
| Requires 7th character | Yes |