K75.4 – Autoimmune hepatitis

ICD-10-CM 2027 diagnosis code · Diseases of liver

Billable code

ICD-10-CM code K75.4

Code: K75.4 (claims format: K754)
Description: Autoimmune hepatitis
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 11. Diseases of the digestive system (K00-K95)
Block: K70-K77 Diseases of liver
Parent codes: K75

Notes for K75.4

Applicable to:

Lupoid hepatitis NEC

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

K75 – Other inflammatory liver diseases

Excludes2 (not included here):

toxic liver disease (K71.-)

Block K70-K77

Excludes1 (not coded here):

jaundice NOS (R17)

Excludes2 (not included here):

hemochromatosis (E83.11-)
Reye's syndrome (G93.7)
viral hepatitis (B15-B19)
Wilson's disease (E83.01)

Index terms for K75.4

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in K75

K75.0 – Abscess of liverBillable
K75.1 – Phlebitis of portal veinBillable
K75.2 – Nonspecific reactive hepatitisBillable
K75.3 – Granulomatous hepatitis, not elsewhere classifiedBillable
K75.8 – Other specified inflammatory liver diseasesHeader
K75.9 – Inflammatory liver disease, unspecifiedBillable

Frequently asked questions

What is ICD-10 code K75.4?

K75.4 is the ICD-10-CM code for autoimmune hepatitis, in the block K70-K77 (Diseases of liver).

Is K75.4 a billable code?

Yes. K75.4 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does K75.4 belong to?

It belongs to category K75 – Other inflammatory liver diseases.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.