K83.1
Obstruction of bile duct
K83.1 (also written K831) is a billable ICD-10-CM diagnosis code for obstruction of bile duct. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 9 codes in category K83 (Other diseases of biliary tract). The Alphabetic Index lists it under 25 entries. Its coding notes include 3 Excludes1 entries and 10 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- conditions involving the gallbladder (K81-K82)
- conditions involving the cystic duct (K81-K82)
Also from chapter/block level (8 notes)
- 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)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Gastrointestinal tract and Genitourinary system clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Hospital MCC
Counts as a major complication or comorbidity (MCC) when reported as a secondary diagnosis on an inpatient claim. It does not count when the principal diagnosis is one of the 16 codes in its exclusion list. Some MS-DRGs also ignore a CC or MCC that defines the DRG.
Source: CMS MS-DRG Definitions Manual v44, effective October 1, 2026, Appendix CInclusion terms
Conditions classified to this code.
- Occlusion of bile duct without cholelithiasis
- Stenosis of bile duct without cholelithiasis
- Stricture of bile duct without cholelithiasis
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 25 entries
- 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
Show 13 more
- 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