S35.339A vs S35.339D
S35.339A (Unspecified injury of superior mesenteric vein, initial encounter) compared with S35.339D (Unspecified injury of superior mesenteric vein, subsequent encounter), from the official CMS tabular data. S35.339A and S35.339D code the same injury at a different phase of treatment.
Can these codes be reported together?
Same injury, other encounter phase. S35.339A and S35.339D 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.
Side by side
| S35.339AUnspecified injury of superior mesenteric vein, initial encounter | S35.339DUnspecified injury of superior mesenteric vein, 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 | Unspecified injury of superior mesenteric vein, initial encounter is a billable ICD-10-CM diagnosis code (S35.339A). | Unspecified injury of superior mesenteric vein, subsequent encounter is a billable ICD-10-CM diagnosis code (S35.339D). |
| 7th character | The appropriate 7th character is to be added to each code from category S35 | The appropriate 7th character is to be added to each code from category S35 |
| Includes | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources