| Full description | Unspecified injury of flexor muscle, fascia and tendon of unspecified thumb 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 | S56.00 — Unsp injury of flexor musc/fasc/tend thumb at forearm level |
| Requires 7th character | Yes |