K55.03

K55.03: Acute (reversible) ischemia of large intestine

Non-billable headerICD-10-CM

K55.03 is a non-billable header ICD-10-CM code for acute (reversible) ischemia of large intestine. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Acute fulminant ischemic colitis
Subacute ischemic colitis

Excludes1 inherited from the categories above K55.03

A category’s note binds every code beneath it.

Written on K55: Vascular disorders of intestine

necrotizing enterocolitis of newborn (P77.-)

Excludes2 inherited from the categories above K55.03

Not part of this code, but both may be coded when both are present.

Written on K55: Vascular disorders of intestine

angioectasia (angiodysplasia) duodenum (K31.81-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead K55.03

3 child codes. Green means billable.