| Full description | Strain of flexor muscle, fascia and tendon of unspecified thumb at forearm level, initial encounter |
| 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 | S56.019 — Strain of flexor musc/fasc/tend thmb at forearm level |