2027 ICD-10-CM Diagnosis Code K83.8Other specified diseases of biliary tract

ICD-10-CM Codes›K00–K95›K80-K87›K83

ICD-10-CM K83.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K83.8 is a billable ICD-10-CM diagnosis code for other specified diseases of biliary tract. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Biliary tract disease.

Code Identity

ICD-10-CM Code
K83.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified diseases of biliary tract
Short Description
Other specified diseases of biliary tract
Same as the full description in the CMS dataset.
Parent Code
Other diseases of biliary tract

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK80-K87Disorders of gallbladder, biliary tract and pancreas
CategoryK83Other diseases of biliary tract
This CodeK83.8Other specified diseases of biliary tract

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal biliary-pancreatic junction
  • Abnormal liver function
  • Acquired dilation of bile duct
  • Acquired paucity of intrahepatic bile ducts
  • Acute cholangiohepatitis
  • Adhesion of bile duct
  • Adhesions of biliary tree
  • Atrophy of bile duct
  • Atrophy of biliary tree
  • Benign intrahepatic cholestasis type 1
  • Benign recurrent intrahepatic cholestasis
  • Bile duct leakage
  • Bile duct proliferation
  • Biliary sludge
  • Biliary tract dysplasia
  • Cholangiectasis
  • Cholangiohepatitis
  • Cystic dilation of intrahepatic duct
  • Diverticulum of peri-ampullary tissue of hepatopancreatic ampulla
  • Dysfunction of sphincter of Oddi
  • Dyskinesia of sphincter of Oddi
  • Dysplasia of extrahepatic bile ducts
  • Familial hypertrophy of sphincter of Oddi
  • Fibrosis of bile duct
  • Functional biliary sphincter of Oddi disorder
  • Fungal infection of bile duct
  • Hemobilia
  • Hemorrhage of bile duct
  • Hepatic duct dysplasia
  • Hypertrophy of bile duct
  • Hypertrophy of biliary tract
  • Idiopathic ductopenia
  • Impaired bile formation
  • Infection of bile duct caused by parasite
  • Infection of biliary tract
  • Ketamine-induced biliary dilatation
  • Leakage of bile
  • Mild biliary tract dysplasia
  • Moderate biliary tract dysplasia
  • Postprocedural bile duct leakage
  • Severe biliary tract dysplasia
  • Ulcer of bile duct
  • Ulcer of biliary tree
  • Verbrycke's syndrome

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K83.8: its own notes plus those printed at K83 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.

  • Adhesions of biliary tract
  • Atrophy of biliary tract
  • Hypertrophy of biliary tract
  • Ulcer of biliary tract

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From K83 Other diseases of biliary tract applies to 9 codes
  • postcholecystectomy syndrome (K91.5)

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.

From K83 Other diseases of biliary tract applies to 9 codes
  • conditions involving the gallbladder (K81-K82)
  • conditions involving the cystic duct (K81-K82)
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • 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)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DIG017
Biliary tract disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Bile Duct Diseases

Your liver makes a digestive juice called bile. Your gallbladder stores it between meals. When you eat, your gallbladder pushes the bile into tubes called bile ducts. They carry the bile to your small intestine. The bile helps break down fat. It also helps the liver get rid of toxins and wastes.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K83.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
576.8 Dis of biliary tract NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K83.8Overview

What is the ICD-10 code for other specified diseases of biliary tract?

The ICD-10-CM code for other specified diseases of biliary tract is K83.8 (sometimes written as K838). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K83.8 (Other diseases of biliary tract) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified diseases of biliary tract on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K83.8 group to?

When other specified diseases of biliary tract 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.

Can K83.8 be reported with K91.5?

Not as a rule. The Excludes1 note at K83, which applies to K83.8, lists "postcholecystectomy syndrome (K91.5)". 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).

What is the ICD-9 equivalent of K83.8?

Under the General Equivalence Mappings, other specified diseases of biliary tract converts to ICD-9-CM 576.8 (dis of biliary tract NEC). The mapping is approximate, so confirm the match fits the documentation.