ICD-10 K83.3
Billable / Specific CCFistula of bile duct
About ICD-10-CM K83.3
ICD-10-CM code K83.3 represents Fistula of bile duct. This is a billable/specific code in the Digestive System chapter (block K83). The 2026 edition of ICD-10-CM K83.3 became effective on October 1, 2025.
Coding Tips for K83.3
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
K83.3 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 K83.3. Per CMS ICD-10-CM Tabular 2026.
- Choledochoduodenal fistula
Inpatient DRG Impact, CC
codes Fistula of bile duct. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for K83.3
Local Coverage Determinations (LCDs) from CMS MACs that list K83.3 as a covered diagnosis.
Showing top 10 of 166 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K83.3.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with K83.3
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert K83.3 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 |
|---|---|---|
| K83.3 | 5764 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To K83.3
Other codes in section K80-K87 (Disorders of gallbladder, biliary tract and pancreas).
ICD-10 K83.3, Billing FAQ
Is ICD-10 code K83.3 billable? +
Yes, K83.3 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 K83.3? +
ICD-10 K83.3 includes: Choledochoduodenal fistula.
Is K83.3 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 ICD-9 codes does K83.3 map to? +
Per CMS GEMs, K83.3 maps to ICD-9 codes: 5764. Useful for legacy data review and historical claim analysis.
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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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