ICD-10-CM Codes
K00-K95 Diseases of the digestive system
K70-K77 Diseases of liver
K73- Chronic hepatitis, not elsewhere classified
2021 ICD-10-CM Diagnosis Code K73

2021 ICD-10-CM Diagnosis Code K73

Chronic hepatitis, not elsewhere classified

2016

2017

2018

2019

2020

2021

Non-Billable/Non-Specific Code

K73 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2021 edition of ICD-10-CM K73 became effective on October 1, 2020.
This is the American ICD-10-CM version of K73 - other international versions of ICD-10 K73 may differ.

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K73. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

alcoholic hepatitis (chronic) (
ICD-10-CM Diagnosis Code K70.1
Alcoholic hepatitis
K70.1-
)
drug-induced hepatitis (chronic) (
ICD-10-CM Diagnosis Code K71
- K71 Toxic liver disease
  - K71.0 Toxic liver disease with cholestasis
  - K71.1 Toxic liver disease with hepatic necrosis
    - K71.10 Toxic liver disease with hepatic necrosis, wi...
    - K71.11 Toxic liver disease with hepatic necrosis, wi...
  - K71.2 Toxic liver disease with acute hepatitis
  - K71.3 Toxic liver disease with chronic persistent h...
  - K71.4 Toxic liver disease with chronic lobular hepa...
  - K71.5 Toxic liver disease with chronic active hepat...
    - K71.50 Toxic liver disease with chronic active hepat...
    - K71.51 Toxic liver disease with chronic active hepat...
  - K71.6 Toxic liver disease with hepatitis, not elsew...
  - K71.7 Toxic liver disease with fibrosis and cirrhos...
  - K71.8 Toxic liver disease with other disorders of l...
  - K71.9 Toxic liver disease, unspecified
K71.-
)
granulomatous hepatitis (chronic) NEC (
ICD-10-CM Diagnosis Code K75.3
Granulomatous hepatitis, not elsewhere classified
Type 1 Excludes
- acute or subacute hepatitis (K72.0-)
- chronic hepatitis NEC (K73.-)
- viral hepatitis (B15-B19)
K75.3
)
reactive, nonspecific hepatitis (chronic) (
ICD-10-CM Diagnosis Code K75.2
Nonspecific reactive hepatitis
Type 1 Excludes
- acute or subacute hepatitis (K72.0-)
- chronic hepatitis NEC (K73.-)
- viral hepatitis (B15-B19)
K75.2
)
viral hepatitis (chronic) (B15-B19
ICD-10-CM Range B15-B19
Viral hepatitis
Type 1 Excludes
- sequelae of viral hepatitis (B94.2)
Type 2 Excludes
- cytomegaloviral hepatitis (B25.1)
- herpesviral [herpes simplex] hepatitis (B00.81)
- B15 Acute hepatitis A
- B16 Acute hepatitis B
- B17 Other acute viral hepatitis
- B18 Chronic viral hepatitis
- B19 Unspecified viral hepatitis
)

The following code(s) above K73 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 K73:

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
- hemochromatosis (E83.11-)
- Reye's syndrome (G93.7)
- viral hepatitis (B15-B19)
- Wilson's disease (E83.0)
Diseases of liver

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 K73:

Type 1 Excludes: K75.2
, K75.3
, K75.9

ICD-10-CM Diagnosis Code K75.2
Nonspecific reactive hepatitis
Type 1 Excludes
- acute or subacute hepatitis (K72.0-)
- chronic hepatitis NEC (K73.-)
- viral hepatitis (B15-B19)
ICD-10-CM Diagnosis Code K75.3
Granulomatous hepatitis, not elsewhere classified
Type 1 Excludes
- acute or subacute hepatitis (K72.0-)
- chronic hepatitis NEC (K73.-)
- viral hepatitis (B15-B19)
ICD-10-CM Diagnosis Code K75.9
Inflammatory liver disease, unspecified
Applicable To
- Hepatitis NOS
Type 1 Excludes
- acute or subacute hepatitis (K72.0-)
- chronic hepatitis NEC (K73.-)
- viral hepatitis (B15-B19)

ICD-10-CM Codes Adjacent To K73

K72 Hepatic failure, not elsewhere classified

K72.0 Acute and subacute hepatic failure

K72.00 …… without coma

K72.01 …… with coma

K72.1 Chronic hepatic failure

K72.10 …… without coma

K72.11 …… with coma

K72.9 Hepatic failure, unspecified

K72.90 …… without coma

K72.91 …… with coma

K73 Chronic hepatitis, not elsewhere classified

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 liver

K74.0 Hepatic fibrosis

K74.00 …… unspecified

K74.01 …… early fibrosis

K74.02 …… advanced fibrosis

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

2021 ICD-10-CM Diagnosis Code K73

Chronic hepatitis, not elsewhere classified

Alcoholic hepatitis

Granulomatous hepatitis, not elsewhere classified

Nonspecific reactive hepatitis

Viral hepatitis

Diseases of the digestive system

Diseases of liver

Nonspecific reactive hepatitis

Granulomatous hepatitis, not elsewhere classified

Inflammatory liver disease, unspecified