K55.059 — Acute (reversible) ischemia of intestine, part and extent unspecified
K55.059 is a billable, specific ICD-10-CM code for acute (reversible) ischemia of intestine, part and extent unspecified. It is valid for submission on a claim.
Risk adjustment
K55.059 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
K55.059 is named in 15 Medicare coverage policies — 15 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56632Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
- A56727Billing and Coding: Wireless Capsule Endoscopy
How K55.059 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K55.059.
- Embolism›mesenteric(artery) (vein) (with gangrene)
- Enterocolitis›fulminant ischemic
- Enterocolitis›hemorrhagic(acute)
- Enteropathy›hemorrhagic, terminal
- Ischemia, ischemic›mesenteric, acute
- Narrowing›mesenteric artery
- Embolism›artery›mesenteric(with gangrene)
- Ischemia, ischemic›bowel›acute
- Ischemia, ischemic›intestine›acute
- Insufficiency, insufficient›vascular›intestine›acute
Related codes at this level
Codes that share K55.05. If K55.059 is not quite right, the correct code is usually one of these.
Questions about K55.059
- Is K55.059 a billable ICD-10-CM code?
- Yes. K55.059 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K55.059 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Other diseases of intestines (K55-K64).