ICD-10-CM 2027
ICD-10 code for hepatitis
From the official ICD-10-CM alphabetic index entry “Hepatitis”. Page updated September 29, 2026.
About coding hepatitis
The ICD-10-CM code for hepatitis is K75.9 (Inflammatory liver disease, unspecified). The official index lists 102 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K75.9.
Within K75, choose K75.9 (Inflammatory liver disease, unspecified) only when documentation doesn't support a more specific option: abscess of liver (K75.0), phlebitis of portal vein (K75.1), nonspecific reactive hepatitis (K75.2), granulomatous hepatitis, not elsewhere classified (K75.3), autoimmune hepatitis (K75.4) and other specified inflammatory liver diseases (K75.8).
Don't report K75.9 together with the conditions in its Excludes1 note: acute or subacute hepatitis (K72.0-), chronic hepatitis NEC (K73.-) and viral hepatitis (B15-B19).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific hepatitis codes (official index)
- A
- acute B17.9 — Acute viral hepatitis, unspecified
- with coma K72.01 — Acute and subacute hepatic failure with coma
- with hepatic failure
- alcoholic
- infectious B17.9 — Acute viral hepatitis, unspecified
- non-viral K72.0 — Acute and subacute hepatic failure
- viral (see also, Hepatitis, viral) B17.9 — Acute viral hepatitis, unspecified
- alcoholic (acute) (chronic) K70.10 — Alcoholic hepatitis without ascites
- with ascites K70.11 — Alcoholic hepatitis with ascites
- amebic
- anicteric, (viral)
- antigen-associated (HAA)
- Australia-antigen (positive)
- autoimmune K75.4 — Autoimmune hepatitis
- B B19.10 — Unspecified viral hepatitis B without hepatic coma
- with B19.11 — Unspecified viral hepatitis B with hepatic coma
- delta (agent)
- hepatic coma B19.11 — Unspecified viral hepatitis B with hepatic coma
- acute B16.9 — Acute hepatitis B without delta-agent and without hepatic coma
- with
- delta-agent (coinfection) (without hepatic coma) B16.1 — Acute hepatitis B with delta-agent without hepatic coma
- with hepatic coma B16.0 — Acute hepatitis B with delta-agent with hepatic coma
- hepatic coma (without delta-agent coinfection) B16.2 — Acute hepatitis B without delta-agent with hepatic coma
- chronic B18.1 — Chronic viral hepatitis B without delta-agent
- with delta-agent B18.0 — Chronic viral hepatitis B with delta-agent
- bacterial NEC K75.89 — Other specified inflammatory liver diseases
- C (viral) B19.20 — Unspecified viral hepatitis C without hepatic coma
- with hepatic coma B19.21 — Unspecified viral hepatitis C with hepatic coma
- acute B17.10 — Acute hepatitis C without hepatic coma
- with hepatic coma B17.11 — Acute hepatitis C with hepatic coma
- chronic B18.2 — Chronic viral hepatitis C
- catarrhal (acute) B15.9 — Hepatitis A without hepatic coma
- with hepatic coma B15.0 — Hepatitis A with hepatic coma
- cholangiolitic K75.89 — Other specified inflammatory liver diseases
- cholestatic K75.89 — Other specified inflammatory liver diseases
- chronic K73.9 — Chronic hepatitis, unspecified
- active NEC K73.2 — Chronic active hepatitis, not elsewhere classified
- toxic
- lobular NEC K73.1 — Chronic lobular hepatitis, not elsewhere classified
- persistent NEC K73.0 — Chronic persistent hepatitis, not elsewhere classified
- specified NEC K73.8 — Other chronic hepatitis, not elsewhere classified
- toxic
- viral
- cytomegaloviral B25.1 — Cytomegaloviral hepatitis
- D B16.1 — Acute hepatitis B with delta-agent without hepatic coma
- acute B16.1 — Acute hepatitis B with delta-agent without hepatic coma
- with hepatic coma B16.0 — Acute hepatitis B with delta-agent with hepatic coma
- in hepatitis B carrier B17.0 — Acute delta-(super) infection of hepatitis B carrier
- chronic B18.0 — Chronic viral hepatitis B with delta-agent
- delta (agent)
- due to ethanol (acute) (chronic)
- epidemic B15.9 — Hepatitis A without hepatic coma
- with hepatic coma B15.0 — Hepatitis A with hepatic coma
- fulminant NEC (viral)
- neonatal giant cell P59.29 — Neonatal jaundice from other hepatocellular damage
- granulomatous NEC K75.3 — Granulomatous hepatitis, not elsewhere classified
- herpesviral B00.81 — Herpesviral hepatitis
- history of
- B Z86.19 — Personal history of other infectious and parasitic diseases
- C Z86.19 — Personal history of other infectious and parasitic diseases
- homologous serum
- in (due to)
- mumps B26.81 — Mumps hepatitis
- toxoplasmosis (acquired) B58.1 — Toxoplasma hepatitis
- congenital (active) P37.1 — Congenital toxoplasmosis
- infectious, infective B15.9 — Hepatitis A without hepatic coma
- acute (subacute) B17.9 — Acute viral hepatitis, unspecified
- chronic B18.9 — Chronic viral hepatitis, unspecified
- inoculation
- interstitial (chronic) K74.69 — Other cirrhosis of liver
- ischemia, ischemic K72.00 — Acute and subacute hepatic failure without coma
- lupoid NEC K75.4 — Autoimmune hepatitis
- malignant NEC (with hepatic failure) K72.90 — Hepatic failure, unspecified without coma
- with coma K72.91 — Hepatic failure, unspecified with coma
- neonatal (idiopathic) (toxic) P59.29 — Neonatal jaundice from other hepatocellular damage
- newborn P59.29 — Neonatal jaundice from other hepatocellular damage
- postimmunization
- post-transfusion
- reactive, nonspecific K75.2 — Nonspecific reactive hepatitis
- serum
- shock K72.00 — Acute and subacute hepatic failure without coma
- specified type NEC
- with hepatic failure
- syphilitic (late) A52.74 — Syphilis of liver and other viscera
- congenital (early) A50.08 — Early visceral congenital syphilis
- late A50.59 — Other late congenital syphilis, symptomatic
- secondary A51.45 — Secondary syphilitic hepatitis
- toxic K71.6 — Toxic liver disease with hepatitis, not elsewhere classified
- tuberculous A18.83 — Tuberculosis of digestive tract organs, not elsewhere classified
- viral, virus B19.9 — Unspecified viral hepatitis without hepatic coma
- with hepatic coma B19.0 — Unspecified viral hepatitis with hepatic coma
- acute B17.9 — Acute viral hepatitis, unspecified
- chronic B18.9 — Chronic viral hepatitis, unspecified
- specified NEC B18.8 — Other chronic viral hepatitis
- type
- B B18.1 — Chronic viral hepatitis B without delta-agent
- with delta-agent B18.0 — Chronic viral hepatitis B with delta-agent
- C B18.2 — Chronic viral hepatitis C
- D B18.0 — Chronic viral hepatitis B with delta-agent
- congenital P35.3 — Congenital viral hepatitis
- coxsackie B33.8 — Other specified viral diseases
- cytomegalic inclusion B25.1 — Cytomegaloviral hepatitis
- in remission, any type - code to Hepatitis, chronic, by type
- non-A, non-B B17.8 — Other specified acute viral hepatitis
- specified type NEC (with or without coma) B17.8 — Other specified acute viral hepatitis
- type
- A B15.9 — Hepatitis A without hepatic coma
- with hepatic coma B15.0 — Hepatitis A with hepatic coma
- B B19.10 — Unspecified viral hepatitis B without hepatic coma
- with hepatic coma B19.11 — Unspecified viral hepatitis B with hepatic coma
- acute B16.9 — Acute hepatitis B without delta-agent and without hepatic coma
- with
- delta-agent (coinfection) (without hepatic coma) B16.1 — Acute hepatitis B with delta-agent without hepatic coma
- with hepatic coma B16.0 — Acute hepatitis B with delta-agent with hepatic coma
- hepatic coma (without delta-agent coinfection) B16.2 — Acute hepatitis B without delta-agent with hepatic coma
- chronic B18.1 — Chronic viral hepatitis B without delta-agent
- with delta-agent B18.0 — Chronic viral hepatitis B with delta-agent
- C B19.20 — Unspecified viral hepatitis C without hepatic coma
- with hepatic coma B19.21 — Unspecified viral hepatitis C with hepatic coma
- acute B17.10 — Acute hepatitis C without hepatic coma
- with hepatic coma B17.11 — Acute hepatitis C with hepatic coma
- chronic B18.2 — Chronic viral hepatitis C
- D B16.1 — Acute hepatitis B with delta-agent without hepatic coma
- acute B16.1 — Acute hepatitis B with delta-agent without hepatic coma
- with hepatic coma B16.0 — Acute hepatitis B with delta-agent with hepatic coma
- in hepatitis B carrier B17.0 — Acute delta-(super) infection of hepatitis B carrier
- chronic B18.0 — Chronic viral hepatitis B with delta-agent
- delta (agent)
- E B17.2 — Acute hepatitis E
- non-A, non-B B17.8 — Other specified acute viral hepatitis
Don't confuse with (Excludes1 for K75.9)
Common questions about hepatitis ICD-10 codes
What is the ICD-10 code for hepatitis?
- K75.9 — Inflammatory liver disease, unspecified. More specific codes apply when the documentation supports them: B17.9, K72.01, B17.9, K72.0 and others below.
What is the ICD-10 code for acute hepatitis?
- B17.9 — Acute viral hepatitis, unspecified.
What is the ICD-10 code for alcoholic hepatitis?
- K70.10 — Alcoholic hepatitis without ascites.
What is the ICD-10 code for autoimmune hepatitis?
- K75.4 — Autoimmune hepatitis.
What is the ICD-10 code for b hepatitis?
- B19.10 — Unspecified viral hepatitis B without hepatic coma.
What is the ICD-10 code for bacterial nec hepatitis?
- K75.89 — Other specified inflammatory liver diseases.
What is the ICD-10 code for c hepatitis?
- B19.20 — Unspecified viral hepatitis C without hepatic coma.
Is K75.9 billable?
- Yes. K75.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K75.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K75.9 as a principal diagnosis.
Is K75.9 a CC or MCC?
- No. K75.9 is neither a CC nor an MCC under MS-DRG v44.0.