2026 ICD-10-CM Diagnosis Code K83.1Obstruction of bile duct

ICD-10-CM Codes›K00–K95›K80-K87›K83

ICD-10-CM K83.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K83.1 is a billable ICD-10-CM diagnosis code for obstruction of bile duct. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) 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
K83.1
Billable Status
Yes — Valid for Submission
Code Describes
Obstruction of bile duct
Short Description
Obstruction of bile duct
Same as the full description in the CMS dataset.
Parent Code
K83
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 CodeK83.1Obstruction of bile duct

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Ampulla of Vater obstruction syndrome
  • Anastomotic biliary stricture
  • Anastomotic stricture of small intestine
  • Benign intrahepatic cholestasis type 2
  • Benign recurrent intrahepatic cholestasis
  • Biliary stricture
  • Cholestasis
  • Cholestasis in newborn
  • Cholestasis of pregnancy
  • Cholestasis of pregnancy complicating childbirth
  • Cholestasis with pigmentary retinopathy and cleft palate syndrome
  • Cholestasis-edema syndrome, Norwegian type
  • Conjugated hyperbilirubinemia
  • Courvoisier-Terrier syndrome
  • Deficiency of coagulation factor due to vitamin K deficiency
  • Deficiency of coagulation factor due to vitamin K malabsorption in obstructive biliary disease
  • Disorder of anastomosis of biliary tract
  • Disorder of liver due to disorder of amino acid metabolism
  • Drug-induced intrahepatic cholestasis
  • Extrahepatic cholestasis
  • Extrahepatic obstructive biliary disease
  • GRACILE syndrome
  • Liver disorder in pregnancy
  • Mirizzi's syndrome
  • Neonatal intrahepatic cholestasis due to citrin deficiency
  • Obstruction of bile duct
  • Obstruction of biliary tree
  • Obstruction of common bile duct
  • Obstructive hyperbilirubinemia
  • Occlusion of bile duct
  • Postoperative biliary stricture
  • Postoperative stricture
  • Postpartum cholestasis
  • Progressive familial intrahepatic cholestasis type 1
  • Progressive familial intrahepatic cholestasis type 2
  • Progressive familial intrahepatic cholestasis type 3
  • Progressive familial intrahepatic cholestasis type 4
  • Progressive intrahepatic cholestasis
  • Retinal pigment deposits
  • Stasis of bile duct
  • Stenosis of bile duct
  • Stenosis of jejunum
  • Stenosis of stoma
  • Stricture of anastomosis of gastrointestinal tract
  • Stricture of anastomosis of intestine
  • Stricture of bile duct
  • Stricture of biliary-enteric anastomosis
  • Stricture of hepatic duct
  • Stricture of hepaticojejunal anastomosis
  • Stricture of jejunum
  • Stricture of small intestine
  • Vanishing bile duct syndrome
  • Vitamin K deficiency coagulation disorder due to malabsorption

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Occlusion of bile duct without cholelithiasis
  • Stenosis of bile duct without cholelithiasis
  • Stricture of bile duct without cholelithiasis

Type 1 Excludes

  • congenital obstruction of bile duct Q44.3
  • obstruction of bile duct with cholelithiasis K80

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cholestasis NEC
    • Jaundice(yellow)
      • obstructive
    • Jaundice(yellow)
      • regurgitation
    • Mirizzi's syndrome(hepatic duct stenosis)
    • Obliteration
      • bile duct (noncalculous)
    • Obliteration
      • common duct (noncalculous)
    • Obstruction, obstructed, obstructive
      • ampulla of Vater
    • Obstruction, obstructed, obstructive
      • bile duct or passage (common) (hepatic) (noncalculous)
    • Obstruction, obstructed, obstructive
      • biliary (duct) (tract)
    • Obstruction, obstructed, obstructive
      • common duct (noncalculous)
    • Obstruction, obstructed, obstructive
      • hepatic
        • duct (noncalculous)
    • Obstruction, obstructed, obstructive
      • hepatobiliary
    • Occlusion, occluded
      • bile duct (common) (hepatic) (noncalculous)
    • Stasis
      • bile (noncalculous)
    • Stenosis, stenotic(cicatricial)
      • ampulla of Vater
    • Stenosis, stenotic(cicatricial)
      • bile duct (common) (hepatic)
    • Stenosis, stenotic(cicatricial)
      • common (bile) duct
    • Stenosis, stenotic(cicatricial)
      • hepatic duct
    • Stenosis, stenotic(cicatricial)
      • papilla of Vater
    • Stenosis, stenotic(cicatricial)
      • sphincter of Oddi
    • Stricture
      • ampulla of Vater
    • Stricture
      • bile duct (common) (hepatic)
    • Stricture
      • common (bile) duct
    • Stricture
      • hepatic duct
    • Syndrome
      • Mirizzi's

Clinical ClassificationClinical

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

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

Clinical InformationClinical

  • Alagille Syndrome

    a multisystem disorder that is characterized by aplasia of intrahepatic bile ducts (bile ducts, intrahepatic), and malformations in the cardiovascular system, the eyes, the vertebral column, and the facies. major clinical features include jaundice, and congenital heart disease with peripheral pulmonary stenosis. alagille syndrome may result from heterogeneous gene mutations, including mutations in jag1 on chromosome 20 (type 1) and notch2 on chromosome 1 (type 2).

  • Cholestasis

    impairment of bile flow due to obstruction in small bile ducts (intrahepatic cholestasis) or obstruction in large bile ducts (extrahepatic cholestasis).

  • Cholestasis, Extrahepatic

    impairment of bile flow in the large bile ducts by mechanical obstruction or stricture due to benign or malignant processes.

  • Cholestasis, Intrahepatic

    impairment of bile flow due to injury to the hepatocytes; bile canaliculi; or the intrahepatic bile ducts (bile ducts, intrahepatic).

  • Bile Ducts

    the channels that collect and transport the bile secretion from the bile canaliculi, the smallest branch of the biliary tract in the liver, through the bile ductules, the bile ducts out the liver, and to the gallbladder for storage.

  • Benign Recurrent Intrahepatic Cholestasis

    reappearance of cholestasis caused by obstruction within the liver by non-cancerous conditions.

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 K83.1 to ICD-9-CMHistory

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

ICD-9-CM
576.2 Obstruction of bile duct
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K83.1Overview

Is K83.1 (Other diseases of biliary tract) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report obstruction of bile duct on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K83.1 group to?

When obstruction of bile duct is the principal diagnosis on an inpatient stay, it groups to MS-DRG 444, 445, 446, with relative weights from 0.8273 to 1.6709 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K83.1?

Under the General Equivalence Mappings, obstruction of bile duct converts to ICD-9-CM 576.2 (obstruction of bile duct). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.