S95.291A (Other specified injury of dorsal vein of right foot, initial encounter) compared with S95.291D (Other specified injury of dorsal vein of right foot, subsequent encounter), from the official CMS tabular data. S95.291A and S95.291D code the same injury at a different phase of treatment.
Same underlying diagnosis, different encounter phase.
The 7th character records the phase of care for the encounter being coded, so a single encounter takes one of these characters, not several. Review whether both phases belong on the same episode of care.
Source: ICD-10-CM Official Guidelines, Section I.C.19.a
Same injury, other encounter phase. S95.291A and S95.291D code the same injury at a different phase of treatment, set by the 7th character.
The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.
| S95.291AOther specified injury of dorsal vein of right foot, initial encounter | S95.291DOther specified injury of dorsal vein of right foot, subsequent encounter | |
|---|---|---|
| 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 | Other specified injury of dorsal vein of right foot, initial encounter is a billable ICD-10-CM diagnosis code (S95.291A). | Other specified injury of dorsal vein of right foot, subsequent encounter is a billable ICD-10-CM diagnosis code (S95.291D). |
| 7th character | The appropriate 7th character is to be added to each code from category S95 | The appropriate 7th character is to be added to each code from category S95 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources