S45.291A (Other specified injury of axillary or brachial vein, right side, initial encounter) compared with S45.299A (Other specified injury of axillary or brachial vein, unspecified side, initial encounter), from the official CMS tabular data. S45.291A and S45.299A 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. S45.291A and S45.299A 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.
| S45.291AOther specified injury of axillary or brachial vein, right side, initial encounter | S45.299AOther specified injury of axillary or brachial vein, unspecified side, initial encounter | |
|---|---|---|
| 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 | Other specified injury of axillary or brachial vein, right side, initial encounter is a billable ICD-10-CM diagnosis code (S45.291A). | Other specified injury of axillary or brachial vein, unspecified side, initial encounter is a billable ICD-10-CM diagnosis code (S45.299A). |
| 7th character | The appropriate 7th character is to be added to each code from category S45 | The appropriate 7th character is to be added to each code from category S45 |
| 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