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K80.4

K80.4: Calculus of bile duct with cholecystitis

Non-billable headerICD-10-CM

K80.4 is a non-billable header ICD-10-CM code for calculus of bile duct with cholecystitis. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

  • code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

  • , if applicable, fistula of bile duct (K83.3)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Any condition listed in K80.5 with cholecystitis (with cholangitis)

Excludes1 inherited from the categories above K80.4

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 K80.4

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

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

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead K80.4

8 child codes. Green means billable.

Other codes under K80

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.