K80.45 Calculus of bile duct with chronic cholecystitis with obstruction

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from K80 Cholelithiasis

Excludes1 (never code together)

• retained cholelithiasis following cholecystectomy (K91.86)

Applies from K80.4 Calculus of bile duct with cholecystitis

Applicable to

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

Use additional code

• 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)

MS-DRG index

Defines the logic of DRG(s) 444-446 in MDC 07.

Approximate ICD-9-CM (GEMs)

• 574.41 Calculus of bile duct with other cholecystitis, with obstruction (approximate)

Code annotations containing back-references to K80.45

Back-references to K80.45

• Code First: K82.A Disorders of gallbladder in diseases classified elsewhere ("the type of cholecystitis (K81.-), or cholelithiasis with cholecystitis (K80.00-K80.19, K80.40-K80.47, K80.60-K80.67)")

Back-references to K80.4

• Type 1 Excludes: K83.0 Cholangitis ("cholangitis with choledocholithiasis (K80.3-, K80.4-)")

Back-references to K80

• Use Additional: D57.09 Hb-SS disease with crisis with other specified complication ("cholelithiasis (K80.-)")
• Use Additional: D57.218 Sickle-cell/Hb-C disease with crisis with other specified complication ("cholelithiasis (K80.-)")
• Use Additional: D57.418 Sickle-cell thalassemia, unspecified, with crisis with other specified complication ("cholelithiasis (K80.-)")
• Use Additional: D57.438 Sickle-cell thalassemia beta zero with crisis with other specified complication ("cholelithiasis (K80.-)")
• Use Additional: D57.458 Sickle-cell thalassemia beta plus with crisis with other specified complication ("cholelithiasis (K80.-)")
• Use Additional: D57.818 Other sickle-cell disorders with crisis with other specified complication ("cholelithiasis (K80.-)")
• Type 1 Excludes: K81 Cholecystitis ("cholecystitis with cholelithiasis (K80.-)")
• Type 1 Excludes: K82.0 Obstruction of gallbladder ("obstruction of gallbladder with cholelithiasis (K80.-)")
• Type 1 Excludes: K82.4 Cholesterolosis of gallbladder ("cholesterolosis of gallbladder with cholelithiasis (K80.-)")
• Type 1 Excludes: K83.1 Obstruction of bile duct ("obstruction of bile duct with cholelithiasis (K80.-)")

Diagnosis Index entries for K80.45

• Calculus, calculi, calculous › bile duct (common) (hepatic) › with › cholecystitis (with cholangitis) › chronic › with › obstruction

Nearby codes

• 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 (this code)
• 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
• K80.5 Calculus of bile duct without cholangitis or cholecystitis
• K80.50 Calculus of bile duct without cholangitis or cholecystitis without obstruction
• K80.51 Calculus of bile duct without cholangitis or cholecystitis with obstruction