2021 ICD-10-CM Diagnosis Code K75.81

Nonalcoholic steatohepatitis (NASH)

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • K75.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM K75.81 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of K75.81 - other international versions of ICD-10 K75.81 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code, if applicable, hepatic fibrosis (
    ICD-10-CM Diagnosis Code K74.0

    Hepatic fibrosis

      2016 2017 2018 2019 2020 2021 - Converted to Parent Code Non-Billable/Non-Specific Code
    Code First
    • underlying liver disease, such as:
    • nonalcoholic steatohepatitis (NASH) (K75.81)
    K74.0-
    )
The following code(s) above K75.81 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K75.81:
  • K00-K95
    2021 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the digestive system
  • K70-K77
    2021 ICD-10-CM Range K70-K77

    Diseases of liver

    Type 1 Excludes
    • jaundice NOS (R17)
    Type 2 Excludes
    Diseases of liver
  • K75
    ICD-10-CM Diagnosis Code K75

    Other inflammatory liver diseases

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • toxic liver disease (K71.-)
    Other inflammatory liver diseases
Approximate Synonyms
  • Nonalcoholic steatohepatitis
  • Steatohepatitis
  • Steatohepatitis (fatty inflammation of liver)
Clinical Information
  • Fatty replacement and damage to the hepatocytes not related to alcohol use. It may lead to cirrhosis and liver failure.
ICD-10-CM K75.81 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 441 Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis with mcc
  • 442 Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis with cc
  • 443 Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert K75.81 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to K75.81:
  • Code First: K74.0
    ICD-10-CM Diagnosis Code K74.0

    Hepatic fibrosis

      2016 2017 2018 2019 2020 2021 - Converted to Parent Code Non-Billable/Non-Specific Code
    Code First
    • underlying liver disease, such as:
    • nonalcoholic steatohepatitis (NASH) (K75.81)
  • Type 1 Excludes: K76.0
    ICD-10-CM Diagnosis Code K76.0

    Fatty (change of) liver, not elsewhere classified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Nonalcoholic fatty liver disease (NAFLD)
    Type 1 Excludes
    • nonalcoholic steatohepatitis (NASH) (K75.81)

Diagnosis Index entries containing back-references to K75.81:
  • Steatohepatitis K75.81 (nonalcoholic) (NASH)

ICD-10-CM Codes Adjacent To K75.81
K74.6 Other and unspecified cirrhosis of liver
K74.60 Unspecified cirrhosis of liver
K74.69 Other cirrhosis of liver
K75 Other inflammatory liver diseases
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
K75.8 Other specified inflammatory liver diseases
K75.81 Nonalcoholic steatohepatitis (NASH)
K75.89 Other specified inflammatory liver diseases
K75.9 Inflammatory liver disease, unspecified
K76 Other diseases of liver
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

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.