K91.2 (Postsurgical malabsorption, not elsewhere classified) compared with T80.82 (Complication of immune effector cellular therapy), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“postsurgical blind-loop syndrome (K91.2)”
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. T80.82 carries an Excludes2 note covering K91.2: “postsurgical blind-loop syndrome (K91.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| K91.2Postsurgical malabsorption, not elsewhere classified | T80.82Complication of immune effector cellular therapy | |
|---|---|---|
| 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 | Postsurgical malabsorption, not elsewhere classified is a billable ICD-10-CM diagnosis code (K91.2). | Complication of immune effector cellular therapy is a non-billable ICD-10-CM category code (T80.82). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T80 |
| Includes | Postsurgical blind loop syndrome | complications following perfusion Complication of chimeric antigen receptor (CAR-T) cell therapy Complication of IEC therapy |
| Use additional code | — | code to identify the specific complication, such as: cytokine release syndrome (D89.83-) immune effector cell-associated neurotoxicity syndrome (G92.0-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources