Coding and coverage · ICD-10-CM

K80

K80.4 Calculus of bile duct with cholecystitis

Not billable (header)Chapter 11

Report one of the more specific codes below.

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Codes under this one

  • K80.40 Calculus of bile duct with cholecystitis, unspecified, without obstruction
  • K80.41 Calculus of bile duct with cholecystitis, unspecified, with obstruction
  • K80.42 Calculus of bile duct with acute cholecystitis without obstruction
  • K80.43 Calculus of bile duct with acute cholecystitis with obstruction
  • K80.44 Calculus of bile duct with chronic cholecystitis without obstruction
  • K80.45 Calculus of bile duct with chronic cholecystitis with obstruction
  • K80.46 Calculus of bile duct with acute and chronic cholecystitis without obstruction
  • K80.47 Calculus of bile duct with acute and chronic cholecystitis with obstruction

Instructional notes

Chapter 11

Excludes2Not included here: the patient may have both; report both when both are present.
  • 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)

K80

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • retained cholelithiasis following cholecystectomy (K91.86)

This code

Use additional codeAdd a second code for the full picture.
  • code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)
Code also
  • , if applicable, fistula of bile duct (K83.3)
Inclusion terms
  • Any condition listed in K80.5 with cholecystitis (with cholangitis)

Chapter 11: Diseases of the digestive system · K80-K87 Disorders of gallbladder, biliary tract and pancreas (K80-K87)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.