2027 ICD-10-CM Diagnosis Code K82.3Fistula of gallbladder
ICD-10-CM Codes›K00–K95›K80-K87›K82
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Chronic Condition
K82.3 is a billable ICD-10-CM diagnosis code for fistula of gallbladder. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 444 through 446. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 10 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Biliary tract disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired cholecystocolic fistula
- Cholecystenteric fistula
- Cholecystoduodenal fistula
- Cholecystogastric fistula
- Cholecystojejunal fistula
- Duodenal fistula
- Fistula of gallbladder
- Gastric fistula
- Internal duodenal fistula
- Internal gastric fistula
- Jejunal fistula
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K82.3: its own notes plus those printed at K82 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Cholecystocolic fistula
- Cholecystoduodenal fistula
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
- if applicable, disruption of internal operation (surgical) wound (T81.32-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name K82.3, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming K82.3: its condition is not part of those codes, and both may be reported when the patient has both.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Cholocolic fistula K82.3
cholocolic K82.3
gallbladder K82.3
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Fistulas
A fistula is an abnormal connection between two parts inside of the body. Fistulas may develop between different organs, such as between the esophagus and the windpipe or the bowel and the vagina. They can also develop between two blood vessels, such as between an artery and a vein or between two arteries.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K82.3 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K82.3Overview
What is the ICD-10 code for fistula of gallbladder?
The ICD-10-CM code for fistula of gallbladder is K82.3 (sometimes written as K823). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K82.3 (Other diseases of gallbladder) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report fistula of gallbladder on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K82.3 group to?
When fistula of gallbladder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 444, 445, 446, with relative weights from 0.8121 to 1.6662 depending on complications. Higher weights mean higher Medicare reimbursement.
Is K82.3 a CC or MCC?
CMS lists K82.3 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 10 closely related codes in its exclusion list.
Can K82.3 be reported with R93.2?
Not as a rule. The Excludes1 note at K82, which applies to K82.3, lists "nonvisualization of gallbladder (R93.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
