K57.0 vs K57.4
K57.0 (Diverticulitis of small intestine with perforation and abscess) compared with K57.4 (Diverticulitis of both small and large intestine with perforation and abscess), 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. K57.0 carries an Excludes1 note covering K57.4: “diverticulitis of both small and large intestine with perforation and abscess (K57.4-)”
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 abscess | K57.4Diverticulitis of both small and large intestine with perforation and abscess | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Diverticulitis of small intestine with perforation and abscess is a non-billable ICD-10-CM category code (K57.0). | Diverticulitis of both small and large intestine with perforation and abscess is a non-billable ICD-10-CM category code (K57.4). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources