S49.121 (Salter-Harris Type II physeal fracture of lower end of humerus, right arm) compared with S49.129 (Salter-Harris Type II physeal fracture of lower end of humerus, unspecified arm), from the official CMS tabular data. S49.121 and S49.129 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. S49.121 and S49.129 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.
| S49.121Salter-Harris Type II physeal fracture of lower end of humerus, right arm | S49.129Salter-Harris Type II physeal fracture of lower end of humerus, unspecified arm | |
|---|---|---|
| Billing status | Non-billable header Report instead: S49.121A, S49.121D, S49.121G, S49.121K, S49.121P | Non-billable header Report instead: S49.129A, S49.129D, S49.129G, S49.129K, S49.129P |
| 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 | Salter-Harris Type II physeal fracture of lower end of humerus, right arm is a non-billable ICD-10-CM category code (S49.121). | Salter-Harris Type II physeal fracture of lower end of humerus, unspecified arm is a non-billable ICD-10-CM category code (S49.129). |
| 7th character | The appropriate 7th character is to be added to each code from subcategories S49.0 and S49.1 | The appropriate 7th character is to be added to each code from subcategories S49.0 and S49.1 |
| 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