K91.1 vs T80.29XD
K91.1 (Postgastric surgery syndromes) compared with T80.29XD (Infection following other infusion, transfusion and therapeutic injection, subsequent encounter), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. T80.29XD carries an Excludes2 note covering K91.1: “postgastric surgery syndromes (K91.1)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| K91.1Postgastric surgery syndromes | T80.29XDInfection following other infusion, transfusion and therapeutic injection, subsequent encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Postgastric surgery syndromes is a billable ICD-10-CM diagnosis code (K91.1). | Infection following other infusion, transfusion and therapeutic injection, subsequent encounter is a billable ICD-10-CM diagnosis code (T80.29D). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T80 |
| Includes | Dumping syndrome Postgastrectomy syndrome Postvagotomy syndrome | complications following perfusion |
| Use additional code | — | code to identify the specific infection, such as: sepsis (A41.9) code (R65.2-) to identify severe sepsis, if applicable |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources