Is ICD-10-CM code K73 billable?

No, K73 (Chronic hepatitis, not elsewhere classified) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code K73 belong to?

K73 belongs to Chapter 11 of the ICD-10-CM tabular list: K00–K95 (Diseases of the Digestive System).

K73Non-billable

Chronic hepatitis, not elsewhere classified

Diseases of the Digestive System·Diseases of liver (K70-K77)·category·FY 2026

Use a more specific code (5 billable)

K73.0Chronic persistent hepatitis, not elsewhere classified K73.1Chronic lobular hepatitis, not elsewhere classified K73.2Chronic active hepatitis, not elsewhere classified K73.8Other chronic hepatitis, not elsewhere classified K73.9Chronic hepatitis, unspecified

CH11 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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)

K70-K77 Parent Instructions

Excludes1(Not coded here. Use a different code.)

jaundice NOS (R17)

Excludes2(Not included here. Code separately if applicable.)

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

Instructional Notes

Excludes1(Not coded here. Use a different code.)

alcoholic hepatitis (chronic) (K70.1-)
drug-induced hepatitis (chronic) (K71.-)
granulomatous hepatitis (chronic) NEC (K75.3)
reactive, nonspecific hepatitis (chronic) (K75.2)
viral hepatitis (chronic) (B15-B19)

Use Additional Code

code, if applicable, for ascites (R18.8)

Clinical Hierarchy

BillableHas subcodes

CH11Diseases of the digestive system (K00-K95)

K70-K77Diseases of liver (K70-K77)

K73Chronic hepatitis, not elsewhere classifiedNot billable

K73.0Chronic persistent hepatitis, not elsewhere classifiedBillable

K73.1Chronic lobular hepatitis, not elsewhere classifiedBillable

K73.2Chronic active hepatitis, not elsewhere classifiedBillable

K73.8Other chronic hepatitis, not elsewhere classifiedBillable

K73.9Chronic hepatitis, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.