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K91.2 vs T85.71

K91.2 (Postsurgical malabsorption, not elsewhere classified) compared with T85.71 (Infection and inflammatory reaction due to peritoneal dialysis catheter), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Relationship

Informational

Excludes2 relationship

T85.71
Infection and inflammatory reaction due to peritoneal dialysis catheter
K91.2
Postsurgical malabsorption, not elsewhere classified

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

Can these codes be reported together?

Yes, when both are documented. T85.71 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 classifiedT85.71Infection and inflammatory reaction due to peritoneal dialysis catheter
Billing statusBillableNon-billable header
ClassificationK00-K95 — Diseases of the Digestive System (K00-K95)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionPostsurgical malabsorption, not elsewhere classified is a billable ICD-10-CM diagnosis code (K91.2).Infection and inflammatory reaction due to peritoneal dialysis catheter is a non-billable ICD-10-CM category code (T85.71).
7th characterThe appropriate 7th character is to be added to each code from category T85
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