B18.2 — Chronic viral hepatitis C
B18.2

What this code means
Long-term (chronic) infection of the liver with the hepatitis C virus.
Also called: chronic hepatitis c, hep c.
When this code is used
Used for chronic viral hepatitis C.
Where it sits in ICD-10-CM
Code B18.2 belongs to Chapter 1: Infectious and parasitic diseases, which covers codes A00–B99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
Related anatomy
Frequently asked questions
What is ICD-10-CM code B18.2?
B18.2 is the ICD-10-CM diagnosis code for “Chronic viral hepatitis C”. Long-term (chronic) infection of the liver with the hepatitis C virus.
When is code B18.2 used?
Used for chronic viral hepatitis C. It belongs to Chapter 1 of ICD-10-CM (Infectious and parasitic diseases).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.