| Full description | Laceration of extensor muscle, fascia and tendon of left index finger at forearm level |
| 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 elbow and forearm (S50-S59) |
| Parent code | S56.42 — Lacerat extensor musc/fasc/tend and unsp finger at forarm lv |
| Requires 7th character | Yes |