ICD-10 K31.811
Billable / Specific MCCAngiodysplasia of stomach and duodenum with bleeding
About ICD-10-CM K31.811
ICD-10-CM code K31.811 represents Angiodysplasia of stomach and duodenum with bleeding. This is a billable/specific code in the Digestive System chapter (block K31). The 2026 edition of ICD-10-CM K31.811 became effective on October 1, 2025.
Coding Tips for K31.811
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
K31.811 is designated MCC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-MCC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag MCC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inpatient DRG Impact, MCC
codes Angiodysplasia of stomach and duodenum with bleeding. As a Major Complication/Comorbidity (MCC), this can shift the DRG assignment to a higher-weighted category, substantial reimbursement impact.
Medicare LCD Coverage for K31.811
Local Coverage Determinations (LCDs) from CMS MACs that list K31.811 as a covered diagnosis.
Showing top 10 of 175 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K31.811.
5 Medicare
CPT Codes Commonly Billed with K31.811
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 43249 EGD with dilation — Barrett esophagus, esophageal stricture, esophageal web, gastric outlet obstruction, esophageal polyp, gastric polyp Gastroenterology
Convert K31.811 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| K31.811 | 53783 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To K31.811
Other codes in section K20-K31 (Diseases of esophagus, stomach and duodenum).
ICD-10 K31.811, Billing FAQ
Is ICD-10 code K31.811 billable? +
Yes, K31.811 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is K31.811 a CC or MCC for inpatient DRG? +
Yes, this code is designated as MCC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with K31.811? +
Procedures frequently paired with K31.811 include: 43249.
What ICD-9 codes does K31.811 map to? +
Per CMS GEMs, K31.811 maps to ICD-9 codes: 53783. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team