MCMedicalCodingSoftware
K80.51

K80.51: Calculus of bile duct without cholangitis or cholecystitis with obstruction

Billable / specific codeICD-10-CM

K80.51 is a billable, specific ICD-10-CM code for calculus of bile duct without cholangitis or cholecystitis with obstruction. It is valid for submission on a claim.

Check K80.51 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above K80.51

A category’s note binds every code beneath it.

Written on K80: Cholelithiasis

  • retained cholelithiasis following cholecystectomy (K91.86)

Other codes that can never be billed with K80.51

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • K81Cholecystitis
  • K82.0Obstruction of gallbladder
  • K82.4Cholesterolosis of gallbladder
  • K83.1Obstruction of bile duct

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

K80.51 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
  • A57484Billing and Coding: Vitamin D Assay Testing

Alphabetic index entries that lead here

  • Obstruction, obstructed, obstructive›bile duct or passage›with calculus
  • Calculus, calculi, calculous›bile duct›with›obstruction

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under K80.5

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.