K91.2 vs T84.50
K91.2 (Postsurgical malabsorption, not elsewhere classified) compared with T84.50 (Infection and inflammatory reaction due to unspecified internal joint prosthesis), 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. T84.50 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.
Side by side
| K91.2Postsurgical malabsorption, not elsewhere classified | T84.50Infection and inflammatory reaction due to unspecified internal joint prosthesis | |
|---|---|---|
| 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). | Infection and inflammatory reaction due to unspecified internal joint prosthesis is a non-billable ICD-10-CM category code (T84.50). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T84 |
| Includes | Postsurgical blind loop syndrome | — |
| 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