S56.291 (Other injury of other flexor muscle, fascia and tendon at forearm level, right arm) compared with S56.292 (Other injury of other flexor muscle, fascia and tendon at forearm level, left arm), from the official CMS tabular data. S56.291 and S56.292 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. S56.291 and S56.292 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| S56.291Other injury of other flexor muscle, fascia and tendon at forearm level, right arm | S56.292Other injury of other flexor muscle, fascia and tendon at forearm level, left arm | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Other injury of other flexor muscle, fascia and tendon at forearm level, right arm is a non-billable ICD-10-CM category code (S56.291). | Other injury of other flexor muscle, fascia and tendon at forearm level, left arm is a non-billable ICD-10-CM category code (S56.292). |
| 7th character | The appropriate 7th character is to be added to each code from category S56 | The appropriate 7th character is to be added to each code from category S56 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources