K91.1 (Postgastric surgery syndromes) compared with T85.735 (Infection and inflammatory reaction due to cranial or spinal infusion catheter), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“postgastric surgery syndromes (K91.1)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. T85.735 carries an Excludes2 note covering K91.1: “postgastric surgery syndromes (K91.1)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| K91.1Postgastric surgery syndromes | T85.735Infection and inflammatory reaction due to cranial or spinal infusion catheter | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| 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 and inflammatory reaction due to cranial or spinal infusion catheter is a non-billable ICD-10-CM category code (T85.735). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T85 |
| Includes | Dumping syndrome Postgastrectomy syndrome Postvagotomy syndrome | Infection and inflammatory reaction due to epidural catheter Infection and inflammatory reaction due to intrathecal infusion catheter Infection and inflammatory reaction due to subarachnoid catheter Infection and inflammatory reaction due to subdural catheter |
| Use additional code | — | code to identify infection 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