B18.9

ICD-10Billable

Chronic viral hepatitis, unspecified

Official ICD-10-CM descriptor (FY2026)

Chronic viral hepatitis, unspecified

B18.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Carrier of unspecified viral hepatitis

Related codes in B18

B18.0Chronic viral hepatitis B with delta-agent
B18.1Chronic viral hepatitis B without delta-agent
B18.2Chronic viral hepatitis C
B18.8Other chronic viral hepatitis

Where this code sits

Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: Viral hepatitis (B15-B19)
Parent code: B18

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.