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K57.0 vs K63.0

K57.0 (Diverticulitis of small intestine with perforation and abscess) compared with K63.0 (Abscess of intestine), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Can these codes be reported together?

No — do not report together. K63.0 carries an Excludes1 note covering K57.0: “abscess of intestine with diverticular disease (K57.0, K57.2, K57.4, K57.8)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

K57.0Diverticulitis of small intestine with perforation and abscessK63.0Abscess of intestine
Billing statusNon-billable header

Report instead: K57.00, K57.01

Billable
ClassificationK00-K95 — Diseases of the Digestive System (K00-K95)K00-K95 — Diseases of the Digestive System (K00-K95)
DefinitionDiverticulitis of small intestine with perforation and abscess is a non-billable ICD-10-CM category code (K57.0).Abscess of intestine is a billable ICD-10-CM diagnosis code (K63.0).

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources