MS-DRG · FY 2026 v43.0

MS-DRG 441 – Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC

A Medical DRG in MDC 07 (Diseases & Disorders of the Hepatobiliary System & Pancreas). Inpatient cases group to DRG 441 when the ICD-10-CM principal diagnosis is one of the 119 codes listed below and a secondary diagnosis on the major complication or comorbidity (MCC) list is present. Its FY 2026 relative weight is 1.7947 with a geometric mean length of stay of 4.6 days.

Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
1.7947
Relative Weight
4.6
Geometric Mean LOS (days)
6.3
Arithmetic Mean LOS (days)
119
Principal Diagnosis Codes

Severity family

DRG 441with MCCWeight 1.7947 · GMLOS 4.6 daysDRG 442with CCWeight 0.9653 · GMLOS 3.2 daysDRG 443without CC/MCCWeight 0.6997 · GMLOS 2.4 days
How a case is assigned to DRG 441

The grouper first assigns the case to MDC 07 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here), then applies the severity split from secondary diagnoses: with MCC → 441; with CC → 442; without CC/MCC → 443.

ICD-10-CM

Principal Diagnosis Codes 119 codes · 36 categories

119 of 119 shown
A06 Amebiasis1 code
  • A06.4 Amebic liver abscess
A51 Early syphilis1 code
  • A51.45 Secondary syphilitic hepatitis
A52 Late syphilis1 code
  • A52.74 Syphilis of liver and other viscera
B15 Acute hepatitis A2 codes
  • B15.0 Hepatitis A with hepatic coma
  • B15.9 Hepatitis A without hepatic coma
B16 Acute hepatitis B4 codes
  • B16.0 Acute hepatitis B with delta-agent with hepatic coma
  • B16.1 Acute hepatitis B with delta-agent without hepatic coma
  • B16.2 Acute hepatitis B without delta-agent with hepatic coma
  • B16.9 Acute hepatitis B without delta-agent and without hepatic coma
B17 Other acute viral hepatitis6 codes
  • B17.0 Acute delta-(super) infection of hepatitis B carrier
  • B17.10 Acute hepatitis C without hepatic coma
  • B17.11 Acute hepatitis C with hepatic coma
  • B17.2 Acute hepatitis E
  • B17.8 Other specified acute viral hepatitis
  • B17.9 Acute viral hepatitis, unspecified
B18 Chronic viral hepatitis5 codes
  • B18.0 Chronic viral hepatitis B with delta-agent
  • B18.1 Chronic viral hepatitis B without delta-agent
  • B18.2 Chronic viral hepatitis C
  • B18.8 Other chronic viral hepatitis
  • B18.9 Chronic viral hepatitis, unspecified
B19 Unspecified viral hepatitis6 codes
  • B19.0 Unspecified viral hepatitis with hepatic coma
  • B19.10 Unspecified viral hepatitis B without hepatic coma
  • B19.11 Unspecified viral hepatitis B with hepatic coma
  • B19.20 Unspecified viral hepatitis C without hepatic coma
  • B19.21 Unspecified viral hepatitis C with hepatic coma
  • B19.9 Unspecified viral hepatitis without hepatic coma
B25 Cytomegaloviral disease1 code
  • B25.1 Cytomegaloviral hepatitis
B26 Mumps1 code
B58 Toxoplasmosis1 code
  • B58.1 Toxoplasma hepatitis
B65 Schistosomiasis [bilharziasis]1 code
  • B65.1 Schistosomiasis due to Schistosoma mansoni [intestinal schistosomiasis]
B66 Other fluke infections4 codes
B67 Echinococcosis3 codes
  • B67.0 Echinococcus granulosus infection of liver
  • B67.5 Echinococcus multilocularis infection of liver
  • B67.8 Echinococcosis, unspecified, of liver
D13 Benign neoplasm of other and ill-defined parts of digestive system2 codes
  • D13.4 Benign neoplasm of liver
  • D13.5 Benign neoplasm of extrahepatic bile ducts
E80 Disorders of porphyrin and bilirubin metabolism4 codes
  • E80.4 Gilbert syndrome
  • E80.5 Crigler-Najjar syndrome
  • E80.6 Other disorders of bilirubin metabolism
  • E80.7 Disorder of bilirubin metabolism, unspecified
I27 Other pulmonary heart diseases1 code
  • I27.840 Fontan-associated liver disease [FALD]
I81 Portal vein thrombosis1 code
  • I81 Portal vein thrombosis
I82 Other venous embolism and thrombosis1 code
  • I82.0 Budd-Chiari syndrome
K70 Alcoholic liver disease1 code
  • K70.0 Alcoholic fatty liver
K71 Toxic liver disease12 codes
  • K71.0 Toxic liver disease with cholestasis
  • K71.10 Toxic liver disease with hepatic necrosis, without coma
  • K71.11 Toxic liver disease with hepatic necrosis, with coma
  • K71.2 Toxic liver disease with acute hepatitis
  • K71.3 Toxic liver disease with chronic persistent hepatitis
  • K71.4 Toxic liver disease with chronic lobular hepatitis
  • K71.50 Toxic liver disease with chronic active hepatitis without ascites
  • K71.51 Toxic liver disease with chronic active hepatitis with ascites
  • K71.6 Toxic liver disease with hepatitis, not elsewhere classified
  • K71.7 Toxic liver disease with fibrosis and cirrhosis of liver
  • K71.8 Toxic liver disease with other disorders of liver
  • K71.9 Toxic liver disease, unspecified
K72 Hepatic failure, not elsewhere classified6 codes
  • K72.00 Acute and subacute hepatic failure without coma
  • K72.01 Acute and subacute hepatic failure with coma
  • K72.10 Chronic hepatic failure without coma
  • K72.11 Chronic hepatic failure with coma
  • K72.90 Hepatic failure, unspecified without coma
  • K72.91 Hepatic failure, unspecified with coma
K73 Chronic hepatitis, not elsewhere classified5 codes
  • K73.0 Chronic persistent hepatitis, not elsewhere classified
  • K73.1 Chronic lobular hepatitis, not elsewhere classified
  • K73.2 Chronic active hepatitis, not elsewhere classified
  • K73.8 Other chronic hepatitis, not elsewhere classified
  • K73.9 Chronic hepatitis, unspecified
K74 Fibrosis and cirrhosis of liver2 codes
  • K74.1 Hepatic sclerosis
  • K74.2 Hepatic fibrosis with hepatic sclerosis
K75 Other inflammatory liver diseases8 codes
  • K75.0 Abscess of liver
  • K75.1 Phlebitis of portal vein
  • K75.2 Nonspecific reactive hepatitis
  • K75.3 Granulomatous hepatitis, not elsewhere classified
  • K75.4 Autoimmune hepatitis
  • K75.81 Nonalcoholic steatohepatitis (NASH)
  • K75.89 Other specified inflammatory liver diseases
  • K75.9 Inflammatory liver disease, unspecified
K76 Other diseases of liver11 codes
  • K76.0 Fatty (change of) liver, not elsewhere classified
  • K76.1 Chronic passive congestion of liver
  • K76.2 Central hemorrhagic necrosis of liver
  • K76.3 Infarction of liver
  • K76.4 Peliosis hepatis
  • K76.5 Hepatic veno-occlusive disease
  • K76.6 Portal hypertension
  • K76.7 Hepatorenal syndrome
  • K76.82 Hepatic encephalopathy
  • K76.89 Other specified diseases of liver
  • K76.9 Liver disease, unspecified
K77 Liver disorders in diseases classified elsewhere1 code
  • K77 Liver disorders in diseases classified elsewhere
Q44 Congenital malformations of gallbladder, bile ducts and liver8 codes
  • Q44.0 Agenesis, aplasia and hypoplasia of gallbladder
  • Q44.1 Other congenital malformations of gallbladder
  • Q44.4 Choledochal cyst
  • Q44.5 Other congenital malformations of bile ducts
  • Q44.6 Cystic disease of liver
  • Q44.70 Other congenital malformation of liver, unspecified
  • Q44.71 Alagille syndrome
  • Q44.79 Other congenital malformations of liver
R16 Hepatomegaly and splenomegaly, not elsewhere classified2 codes
  • R16.0 Hepatomegaly, not elsewhere classified
  • R16.2 Hepatomegaly with splenomegaly, not elsewhere classified
R17 Unspecified jaundice1 code
  • R17 Unspecified jaundice
R82 Other and unspecified abnormal findings in urine1 code
R94 Abnormal results of function studies1 code
  • R94.5 Abnormal results of liver function studies
S36 Injury of intra-abdominal organs7 codes
  • S36.112A Contusion of liver, initial encounter
  • S36.113A Laceration of liver, unspecified degree, initial encounter
  • S36.114A Minor laceration of liver, initial encounter
  • S36.115A Moderate laceration of liver, initial encounter
  • S36.116A Major laceration of liver, initial encounter
  • S36.118A Other injury of liver, initial encounter
  • S36.119A Unspecified injury of liver, initial encounter
T86 Complications of transplanted organs and tissue5 codes
  • T86.40 Unspecified complication of liver transplant
  • T86.41 Liver transplant rejection
  • T86.42 Liver transplant failure
  • T86.43 Liver transplant infection
  • T86.49 Other complications of liver transplant
Z52 Donors of organs and tissues1 code
Z94 Transplanted organ and tissue status1 code
  • Z94.4 Liver transplant status
ICD-10-PCS

Procedure Codes

Procedure codes do not drive assignment for this DRG. DRG 441 is a Medical DRG, assigned from the principal diagnosis above.

Frequently Asked Questions

What is MS-DRG 441?

MS-DRG 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC) is a medical DRG in MDC 07 (Diseases & Disorders of the Hepatobiliary System & Pancreas). Its FY 2026 relative weight is 1.7947 with a geometric mean length of stay of 4.6 days.

What is the difference between DRG 441, 442, 443?

All 3 share the same base category; the severity of secondary diagnoses separates them: 441 (with MCC), 442 (with CC), 443 (without CC/MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.

How many diagnosis codes group to DRG 441?

119 ICD-10-CM principal diagnosis codes group to this DRG, spanning 36 three-character categories.

What is the relative weight of DRG 441?

The FY 2026 relative weight of this DRG is 1.7947, meaning reimbursement of roughly 1.79 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.

← PreviousDRG 440 – Disorders of Pancreas Except Malignancy without CC/MCC
Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.