K91.1 vs T88.53XD
K91.1 (Postgastric surgery syndromes) compared with T88.53XD (Unintended awareness under general anesthesia during procedure, 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. T88.53XD 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 | T88.53XDUnintended awareness under general anesthesia during procedure, 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). | Unintended awareness under general anesthesia during procedure, subsequent encounter is a billable ICD-10-CM diagnosis code (T88.53D). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T88 |
| Includes | Dumping syndrome Postgastrectomy syndrome Postvagotomy syndrome | — |
| Use additional code | — | code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5) code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code(s) to identify the specified condition resulting from the complication |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources