ICD-10-CM 2027 diagnosis code
K83.1Obstruction of bile duct
K83.1 is a valid, billable ICD-10-CM code for obstruction of bile duct. 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 Cholestasis NEC, ICD-10 code for Mirizzi's syndrome, ICD-10 code for Bile duct stricture.
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 K83.1
K83.1 is the ICD-10-CM diagnosis code for obstruction of bile duct. It belongs to category K83 (other diseases of biliary tract), 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 K83 (other diseases of biliary tract), K83.1 is specifically for obstruction of bile duct. Related codes cover cholangitis (K83.0), perforation of bile duct (K83.2), fistula of bile duct (K83.3), spasm of sphincter of Oddi (K83.4), biliary cyst (K83.5), other specified diseases of biliary tract (K83.8) and disease of biliary tract, unspecified (K83.9).
Don't report K83.1 together with the conditions in its Excludes1 note: congenital obstruction of bile duct (Q44.3) and obstruction of bile duct with cholelithiasis (K80.-).
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 576.2 (obstruction of bile duct).
Coding notes
- Occlusion of bile duct without cholelithiasis
- Stenosis of bile duct without cholelithiasis
- Stricture of bile duct without cholelithiasis
Notes that apply from higher levels
Instructions written at a parent level also apply to K83.1.
Broader instructions also apply from Chapter 11: Diseases of the digestive system.
Alphabetic index entries
25 entriesTerms in the official ICD-10-CM index that lead to K83.1.
- 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
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 →- 576.2Obstruction of bile ductexact
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 K83.1
Is K83.1 billable?
- Yes. K83.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K83.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K83.1 as a principal diagnosis.
Is K83.1 a CC or MCC?
- K83.1 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does K83.1 group to?
- K83.1 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 K83.1?
- The CMS General Equivalence Mappings map K83.1 to ICD-9-CM 576.2.