K55.9
K55.9: Vascular disorder of intestine, unspecified
Billable / specific codeICD-10-CM
K55.9 is a billable, specific ICD-10-CM code for vascular disorder of intestine, unspecified. It is valid for submission on a claim.
Check K55.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Ischemic colitis
- Ischemic enteritis
- Ischemic enterocolitis
Excludes1 inherited from the categories above K55.9
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above K55.9
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
K55.9 is named in 6 Medicare coverage policies: 6 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Alphabetic index entries that lead here
- Colitis›ischemic
- Enteritis›ischemic
- Enterocolitis›ischemic
- Ischemia, ischemic›intestine(large) (small) (transient)
- Disorder›intestine, intestinal›vascular
- Insufficiency, insufficient›vascular›intestine
- Syndrome›ischemic›bowel(transient)
Code history
Unchanged in every release from FY2024 to FY2027.