ICD-10-CM 2027 diagnosis code
K82.3Fistula of gallbladder
K82.3 is a valid, billable ICD-10-CM code for fistula of gallbladder. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Cholocolic fistula.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About K82.3
K82.3 is the ICD-10-CM diagnosis code for fistula of gallbladder. It belongs to category K82 (other diseases of gallbladder), block K80-K87 (disorders of gallbladder, biliary tract and pancreas) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within K82 (other diseases of gallbladder), K82.3 is specifically for fistula of gallbladder. Related codes cover obstruction of gallbladder (K82.0), hydrops of gallbladder (K82.1), perforation of gallbladder (K82.2), Cholesterolosis of gallbladder (K82.4), other specified diseases of gallbladder (K82.8), disease of gallbladder, unspecified (K82.9) and disorders of gallbladder in diseases classified elsewhere (K82.A).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 444 (Disorders of the Biliary Tract with MCC, relative weight 1.6665), DRG 445 (Disorders of the Biliary Tract with CC, relative weight 1.0872) and DRG 446 (Disorders of the Biliary Tract without CC/MCC, relative weight 0.8124), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 575.5 (fistula of gallbladder).
Coding notes
- Cholecystocolic fistula
- Cholecystoduodenal fistula
- , if applicable, disruption of internal operation (surgical) wound (T81.32-)
Notes that apply from higher levels
Instructions written at a parent level also apply to K82.3.
Broader instructions also apply from Chapter 11: Diseases of the digestive system.
Alphabetic index entries
3 entriesTerms in the official ICD-10-CM index that lead to K82.3.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 07 · Diseases and Disorders of the Hepatobiliary System and Pancreas
ICD-9-CM equivalent
Converter →- 575.5Fistula of gallbladderexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about K82.3
Is K82.3 billable?
- Yes. K82.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K82.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K82.3 as a principal diagnosis.
Is K82.3 a CC or MCC?
- K82.3 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does K82.3 group to?
- K82.3 is used in the MS-DRG v44.0 logic for MS-DRG 444 (Disorders of the Biliary Tract with MCC), MS-DRG 445 (Disorders of the Biliary Tract with CC) and MS-DRG 446 (Disorders of the Biliary Tract without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for K82.3?
- The CMS General Equivalence Mappings map K82.3 to ICD-9-CM 575.5.