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K56.0 vs K56.3

K56.0 (Paralytic ileus) compared with K56.3 (Gallstone ileus), 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. K56.0 carries an Excludes1 note covering K56.3: “gallstone ileus (K56.3)”

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

K56.0Paralytic ileusK56.3Gallstone ileus
Billing statusBillableBillable
ClassificationK00-K95 — Diseases of the Digestive System (K00-K95)K00-K95 — Diseases of the Digestive System (K00-K95)
DefinitionParalytic ileus is a billable ICD-10-CM diagnosis code (K56.0).Gallstone ileus is a billable ICD-10-CM diagnosis code (K56.3).
Includes
Paralysis of bowel
Paralysis of colon
Paralysis of intestine
Obstruction of intestine by gallstone

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