S91.251S (Open bite of right great toe with damage to nail, sequela) compared with S91.252S (Open bite of left great toe with damage to nail, sequela), from the official CMS tabular data. S91.251S and S91.252S 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. S91.251S and S91.252S 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.
| S91.251SOpen bite of right great toe with damage to nail, sequela | S91.252SOpen bite of left great toe with damage to nail, sequela | |
|---|---|---|
| Billing status | Billable | Billable |
| 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 | Open bite of right great toe with damage to nail, sequela is a billable ICD-10-CM diagnosis code (S91.251S). | Open bite of left great toe with damage to nail, sequela is a billable ICD-10-CM diagnosis code (S91.252S). |
| 7th character | The appropriate 7th character is to be added to each code from category S91 | The appropriate 7th character is to be added to each code from category S91 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources