ICD-10 K90.821
Billable / Specific CCShort bowel syndrome with colon in continuity
About ICD-10-CM K90.821
ICD-10-CM code K90.821 represents Short bowel syndrome with colon in continuity. This is a billable/specific code in the Digestive System chapter (block K90). The 2026 edition of ICD-10-CM K90.821 became effective on October 1, 2025.
Coding Tips for K90.821
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
K90.821 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under K90.821. Per CMS ICD-10-CM Tabular 2026.
- Short bowel syndrome with colonic continuity
Inpatient DRG Impact, CC
codes Short bowel syndrome with colon in continuity. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for K90.821
Local Coverage Determinations (LCDs) from CMS MACs that list K90.821 as a covered diagnosis.
Showing top 10 of 142 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K90.821.
1 Cigna
5 Medicare
Codes Adjacent To K90.821
Other codes in section K90-K95 (Other diseases of the digestive system).
ICD-10 K90.821, Billing FAQ
Is ICD-10 code K90.821 billable? +
Yes, K90.821 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to K90.821? +
ICD-10 K90.821 includes: Short bowel syndrome with colonic continuity.
Is K90.821 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with K90.821? +
Procedures frequently paired with K90.821 include: J3420, J3425.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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