K90.821 — Short bowel syndrome with colon in continuity
K90.821 is a billable, specific ICD-10-CM code for short bowel syndrome with colon in continuity. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Short bowel syndrome with colonic continuity
Risk adjustment
K90.821 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
K90.821 is named in 10 Medicare coverage policies — 10 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
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56632Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
How K90.821 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 K90.821.
- Syndrome›short›bowel›with›colon in continuity
- Syndrome›short›bowel›with›ileocolonic anastomosis
Related codes at this level
Codes that share K90.82. If K90.821 is not quite right, the correct code is usually one of these.
Questions about K90.821
- Is K90.821 a billable ICD-10-CM code?
- Yes. K90.821 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K90.821 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Other diseases of the digestive system (K90-K95).