All ICD10 Codes

DRG 446

Medical DRG

Disorders of the Biliary Tract without CC/MCC

TypeMedicalMDC07Dx Codes72

What is MS-DRG 446?

MS-DRG 446 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 07 (MDC 07) without a significant Complication or Comorbidity. It maps to 72 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.8273 with a geometric mean length of stay of 2.1 days and an arithmetic mean of 2.5 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Medical DRG
Diagnosis-driven grouping
MDC
Major Diagnostic Category 07
Linked Codes
72 diagnosis
Billable Dx
100%
72 of 72 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
0.8273
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
2.1 days
Used for transfer payment calculations
Arithmetic Mean LOS
2.5 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

Related MS-DRGs in This Severity Group

The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.

DRGTitleRel. WeightGMLOS
444Disorders of the Biliary Tract with MCC1.67094.3 days
445Disorders of the Biliary Tract with CC1.09443 days
446Disorders of the Biliary Tract without CC/MCCThis page0.82732.1 days

Linked ICD-10-CM Diagnosis Mappings

  • K80.00

    Calculus of gallbladder with acute cholecystitis without obstruction

    BillableChapter 11
  • K80.01

    Calculus of gallbladder with acute cholecystitis with obstruction

    BillableChapter 11
  • K80.10

    Calculus of gallbladder with chronic cholecystitis without obstruction

    BillableChapter 11
  • K80.11

    Calculus of gallbladder with chronic cholecystitis with obstruction

    BillableChapter 11
  • K80.12

    Calculus of gallbladder with acute and chronic cholecystitis without obstruction

    BillableChapter 11
  • K80.13

    Calculus of gallbladder with acute and chronic cholecystitis with obstruction

    BillableChapter 11
  • K80.18

    Calculus of gallbladder with other cholecystitis without obstruction

    BillableChapter 11
  • K80.19

    Calculus of gallbladder with other cholecystitis with obstruction

    BillableChapter 11
  • K80.20

    Calculus of gallbladder without cholecystitis without obstruction

    BillableChapter 11
  • K80.21

    Calculus of gallbladder without cholecystitis with obstruction

    BillableChapter 11
  • K80.30

    Calculus of bile duct with cholangitis, unspecified, without obstruction

    BillableChapter 11
  • K80.31

    Calculus of bile duct with cholangitis, unspecified, with obstruction

    BillableChapter 11
  • K80.32

    Calculus of bile duct with acute cholangitis without obstruction

    BillableChapter 11
  • K80.33

    Calculus of bile duct with acute cholangitis with obstruction

    BillableChapter 11
  • K80.34

    Calculus of bile duct with chronic cholangitis without obstruction

    BillableChapter 11
  • K80.35

    Calculus of bile duct with chronic cholangitis with obstruction

    BillableChapter 11
  • K80.36

    Calculus of bile duct with acute and chronic cholangitis without obstruction

    BillableChapter 11
  • K80.37

    Calculus of bile duct with acute and chronic cholangitis with obstruction

    BillableChapter 11
  • K80.40

    Calculus of bile duct with cholecystitis, unspecified, without obstruction

    BillableChapter 11
  • K80.41

    Calculus of bile duct with cholecystitis, unspecified, with obstruction

    BillableChapter 11
  • K80.42

    Calculus of bile duct with acute cholecystitis without obstruction

    BillableChapter 11
  • K80.43

    Calculus of bile duct with acute cholecystitis with obstruction

    BillableChapter 11
  • K80.44

    Calculus of bile duct with chronic cholecystitis without obstruction

    BillableChapter 11
  • K80.45

    Calculus of bile duct with chronic cholecystitis with obstruction

    BillableChapter 11
  • K80.46

    Calculus of bile duct with acute and chronic cholecystitis without obstruction

    BillableChapter 11
  • K80.47

    Calculus of bile duct with acute and chronic cholecystitis with obstruction

    BillableChapter 11
  • K80.50

    Calculus of bile duct without cholangitis or cholecystitis without obstruction

    BillableChapter 11
  • K80.51

    Calculus of bile duct without cholangitis or cholecystitis with obstruction

    BillableChapter 11
  • K80.60

    Calculus of gallbladder and bile duct with cholecystitis, unspecified, without obstruction

    BillableChapter 11
  • K80.61

    Calculus of gallbladder and bile duct with cholecystitis, unspecified, with obstruction

    BillableChapter 11
  • K80.62

    Calculus of gallbladder and bile duct with acute cholecystitis without obstruction

    BillableChapter 11
  • K80.63

    Calculus of gallbladder and bile duct with acute cholecystitis with obstruction

    BillableChapter 11
  • K80.64

    Calculus of gallbladder and bile duct with chronic cholecystitis without obstruction

    BillableChapter 11
  • K80.65

    Calculus of gallbladder and bile duct with chronic cholecystitis with obstruction

    BillableChapter 11
  • K80.66

    Calculus of gallbladder and bile duct with acute and chronic cholecystitis without obstruction

    BillableChapter 11
  • K80.67

    Calculus of gallbladder and bile duct with acute and chronic cholecystitis with obstruction

    BillableChapter 11
  • K80.70

    Calculus of gallbladder and bile duct without cholecystitis without obstruction

    BillableChapter 11
  • K80.71

    Calculus of gallbladder and bile duct without cholecystitis with obstruction

    BillableChapter 11
  • K80.80

    Other cholelithiasis without obstruction

    BillableChapter 11
  • K80.81

    Other cholelithiasis with obstruction

    BillableChapter 11
  • K81.0

    Acute cholecystitis

    BillableChapter 11
  • K81.1

    Chronic cholecystitis

    BillableChapter 11
  • K81.2

    Acute cholecystitis with chronic cholecystitis

    BillableChapter 11
  • K81.9

    Cholecystitis, unspecified

    BillableChapter 11
  • K82.0

    Obstruction of gallbladder

    BillableChapter 11
  • K82.1

    Hydrops of gallbladder

    BillableChapter 11
  • K82.2

    Perforation of gallbladder

    BillableChapter 11
  • K82.3

    Fistula of gallbladder

    BillableChapter 11
  • K82.4

    Cholesterolosis of gallbladder

    BillableChapter 11
  • K82.8

    Other specified diseases of gallbladder

    BillableChapter 11
  • K82.9

    Disease of gallbladder, unspecified

    BillableChapter 11
  • K82.A1

    Gangrene of gallbladder in cholecystitis

    BillableChapter 11
  • K82.A2

    Perforation of gallbladder in cholecystitis

    BillableChapter 11
  • K83.01

    Primary sclerosing cholangitis

    BillableChapter 11
  • K83.09

    Other cholangitis

    BillableChapter 11
  • K83.1

    Obstruction of bile duct

    BillableChapter 11
  • K83.2

    Perforation of bile duct

    BillableChapter 11
  • K83.3

    Fistula of bile duct

    BillableChapter 11
  • K83.4

    Spasm of sphincter of Oddi

    BillableChapter 11
  • K83.5

    Biliary cyst

    BillableChapter 11
  • K83.8

    Other specified diseases of biliary tract

    BillableChapter 11
  • K83.9

    Disease of biliary tract, unspecified

    BillableChapter 11
  • K87

    Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere

    BillableChapter 11
  • K91.5

    Postcholecystectomy syndrome

    BillableChapter 11
  • Q44.2

    Atresia of bile ducts

    BillableChapter 17
  • Q44.3

    Congenital stenosis and stricture of bile ducts

    BillableChapter 17
  • R93.2

    Abnormal findings on diagnostic imaging of liver and biliary tract

    BillableChapter 18
  • S36.122A

    Contusion of gallbladder, initial encounter

    BillableChapter 19
  • S36.123A

    Laceration of gallbladder, initial encounter

    BillableChapter 19
  • S36.128A

    Other injury of gallbladder, initial encounter

    BillableChapter 19
  • S36.129A

    Unspecified injury of gallbladder, initial encounter

    BillableChapter 19
  • S36.13XA

    Injury of bile duct, initial encounter

    BillableChapter 19