MS-DRG v44.0 · MDC 07: Diseases and Disorders of the Hepatobiliary System and Pancreas
445 — Disorders of the Biliary Tract with CC
- Relative weight
- 1.0872
- Geometric mean LOS
- 2.9 days
- Arithmetic mean LOS
- 3.6 days
- Type
- Medical
About MS-DRG 445
MS-DRG 445, Disorders of the Biliary Tract with CC, is a medical DRG in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas) under MS-DRG version 44.0, which applies to inpatient discharges from October 1, 2026 through September 30, 2027.
Its FY2027 relative weight is 1.0872, so Medicare's base payment for this DRG is about 1.09 times the average inpatient case, before hospital-specific adjustments. The geometric mean length of stay is 2.9 days and the arithmetic mean is 3.6 days.
It belongs to a 3-level severity family: DRG 444 (with MCC, weight 1.6665), DRG 445 (with CC, weight 1.0872) and DRG 446 (without CC/MCC, weight 0.8124). The highest-severity level carries 2.1 times the weight of the lowest, which is why documenting CC and MCC conditions matters.
72 ICD-10-CM diagnosis codes are part of this DRG's grouping logic; they are listed below.
ICD-10-CM codes that group to DRG 445 (72)
Chapter 11: Diseases of the digestive system
- K80.00Calculus of gallbladder with acute cholecystitis without obstruction
- K80.01Calculus of gallbladder with acute cholecystitis with obstruction
- K80.10Calculus of gallbladder with chronic cholecystitis without obstruction
- K80.11Calculus of gallbladder with chronic cholecystitis with obstruction
- K80.12Calculus of gallbladder with acute and chronic cholecystitis without obstruction
- K80.13Calculus of gallbladder with acute and chronic cholecystitis with obstruction
- K80.18Calculus of gallbladder with other cholecystitis without obstruction
- K80.19Calculus of gallbladder with other cholecystitis with obstruction
- K80.20Calculus of gallbladder without cholecystitis without obstruction
- K80.21Calculus of gallbladder without cholecystitis with obstruction
- K80.30Calculus of bile duct with cholangitis, unspecified, without obstruction
- K80.31Calculus of bile duct with cholangitis, unspecified, with obstruction
- K80.32Calculus of bile duct with acute cholangitis without obstruction
- K80.33Calculus of bile duct with acute cholangitis with obstruction
- K80.34Calculus of bile duct with chronic cholangitis without obstruction
- K80.35Calculus of bile duct with chronic cholangitis with obstruction
- K80.36Calculus of bile duct with acute and chronic cholangitis without obstruction
- K80.37Calculus of bile duct with acute and chronic cholangitis with obstruction
- K80.40Calculus of bile duct with cholecystitis, unspecified, without obstruction
- K80.41Calculus of bile duct with cholecystitis, unspecified, with obstruction
- K80.42Calculus of bile duct with acute cholecystitis without obstruction
- K80.43Calculus of bile duct with acute cholecystitis with obstruction
- K80.44Calculus of bile duct with chronic cholecystitis without obstruction
- K80.45Calculus of bile duct with chronic cholecystitis with obstruction
- K80.46Calculus of bile duct with acute and chronic cholecystitis without obstruction
- K80.47Calculus of bile duct with acute and chronic cholecystitis with obstruction
- K80.50Calculus of bile duct without cholangitis or cholecystitis without obstruction
- K80.51Calculus of bile duct without cholangitis or cholecystitis with obstruction
- K80.60Calculus of gallbladder and bile duct with cholecystitis, unspecified, without obstruction
- K80.61Calculus of gallbladder and bile duct with cholecystitis, unspecified, with obstruction
- K80.62Calculus of gallbladder and bile duct with acute cholecystitis without obstruction
- K80.63Calculus of gallbladder and bile duct with acute cholecystitis with obstruction
- K80.64Calculus of gallbladder and bile duct with chronic cholecystitis without obstruction
- K80.65Calculus of gallbladder and bile duct with chronic cholecystitis with obstruction
- K80.66Calculus of gallbladder and bile duct with acute and chronic cholecystitis without obstruction
- K80.67Calculus of gallbladder and bile duct with acute and chronic cholecystitis with obstruction
- K80.70Calculus of gallbladder and bile duct without cholecystitis without obstruction
- K80.71Calculus of gallbladder and bile duct without cholecystitis with obstruction
- K80.80Other cholelithiasis without obstruction
- K80.81Other cholelithiasis with obstruction
- K81.0Acute cholecystitis
- K81.1Chronic cholecystitis
- K81.2Acute cholecystitis with chronic cholecystitis
- K81.9Cholecystitis, unspecified
- K82.0Obstruction of gallbladder
- K82.1Hydrops of gallbladder
- K82.2Perforation of gallbladder
- K82.3Fistula of gallbladder
- K82.4Cholesterolosis of gallbladder
- K82.8Other specified diseases of gallbladder
- K82.9Disease of gallbladder, unspecified
- K82.A1Gangrene of gallbladder in cholecystitis
- K82.A2Perforation of gallbladder in cholecystitis
- K83.01Primary sclerosing cholangitis
- K83.09Other cholangitis
- K83.1Obstruction of bile duct
- K83.2Perforation of bile duct
- K83.3Fistula of bile duct
- K83.4Spasm of sphincter of Oddi
- K83.5Biliary cyst
- K83.8Other specified diseases of biliary tract
- K83.9Disease of biliary tract, unspecified
- K87Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere
- K91.5Postcholecystectomy syndrome
Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Chapter 19: Injury, poisoning and certain other consequences of external causes
Common questions about DRG 445
What is the relative weight of DRG 445?
- 1.0872 for FY2027 (MS-DRG v44.0), from the IPPS final rule Table 5.
What is the average length of stay for DRG 445?
- The geometric mean length of stay is 2.9 days; the arithmetic mean is 3.6 days.
Is DRG 445 medical or surgical?
- DRG 445 is a medical DRG.