S35.50XA vs S35.50XD
S35.50XA (Injury of unspecified iliac blood vessel(s), initial encounter) compared with S35.50XD (Injury of unspecified iliac blood vessel(s), subsequent encounter), from the official CMS tabular data. S35.50XA and S35.50XD code the same injury at a different phase of treatment.
Can these codes be reported together?
Same injury, other encounter phase. S35.50XA and S35.50XD 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
| S35.50XAInjury of unspecified iliac blood vessel(s), initial encounter | S35.50XDInjury of unspecified iliac blood vessel(s), 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 | Injury of unspecified iliac blood vessel(s), initial encounter is a billable ICD-10-CM diagnosis code (S35.50A). | Injury of unspecified iliac blood vessel(s), subsequent encounter is a billable ICD-10-CM diagnosis code (S35.50D). |
| 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