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K55.03

Non-billable

Acute (reversible) ischemia of large intestine

K55.03 is the ICD-10-CM code for Acute (reversible) ischemia of large intestine. It is a non-billable category code — use a more specific child code such as K55.031 for billing.

Status
Header (non-billable)
Chapter
K00-K95
Parent
K55.0
Subcodes
3
Edition
FY2026

K00-K95 Diseases of the digestive system

Includes

  • •Acute fulminant ischemic colitis
  • •Subacute ischemic colitis

Frequently asked questions

What is ICD-10 code K55.03?
K55.03 is the ICD-10-CM code for "Acute (reversible) ischemia of large intestine". It falls under K00-K95 Diseases of the digestive system.
Is K55.03 a billable code?
No — K55.03 is a non-billable header code. Use a more specific child code (such as K55.031) for billing.
What are the subcodes of K55.03?
K55.03 has 3 more specific child codes, including K55.031, K55.032, K55.039.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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