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B18

⚠ Non-billable (Header)

Chronic viral hepatitis

Certain infectious and parasitic diseases (A00-B99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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✅ Includes

  • • Carrier of viral hepatitis

📋 Code Instructions

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

Child Codes (5)

B18.0Chronic viral hepatitis B with delta-agentB18.1Chronic viral hepatitis B without delta-agentB18.2Chronic viral hepatitis CB18.8Other chronic viral hepatitisB18.9Chronic viral hepatitis, unspecified

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Code Information

CodeB18
BillableNo — Header code
CategoryCertain infectious and parasitic diseases (A00-B99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes5

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)