S91.051D (Open bite, right ankle, subsequent encounter) compared with S91.059D (Open bite, unspecified ankle, subsequent encounter), from the official CMS tabular data. S91.051D and S91.059D 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. S91.051D and S91.059D 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.
| S91.051DOpen bite, right ankle, subsequent encounter | S91.059DOpen bite, unspecified ankle, subsequent 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 | Open bite, right ankle, subsequent encounter is a billable ICD-10-CM diagnosis code (S91.051D). | Open bite, unspecified ankle, subsequent encounter is a billable ICD-10-CM diagnosis code (S91.059D). |
| 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