S40.841S (External constriction of right upper arm, sequela) compared with S40.849S (External constriction of unspecified upper arm, sequela), from the official CMS tabular data. S40.841S and S40.849S code the same condition on opposite sides. MedCoder-derived
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. S40.841S and S40.849S 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.
| S40.841SExternal constriction of right upper arm, sequela | S40.849SExternal constriction of unspecified upper arm, sequela | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, poisoning and certain other consequences of external causes | S00-T88 — Injury, poisoning and certain other consequences of external causes |
| Definition | External constriction of right upper arm, sequela is a billable ICD-10-CM diagnosis code (S40.841S). | External constriction of unspecified upper arm, sequela is a billable ICD-10-CM diagnosis code (S40.849S). |
| 7th character | The appropriate 7th character is to be added to each code from category S40 | The appropriate 7th character is to be added to each code from category S40 |
| Includes | injuries of axilla injuries of scapular region | injuries of axilla injuries of scapular region |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources