Billable / Specific Code
ICD-10-CM B18.1 is the diagnosis code for Chronic viral hepatitis B without delta-agent. This code falls under the section "Viral hepatitis" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where B18.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, B18.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
B18.1 is the ICD-10-CM diagnosis code for "Chronic viral hepatitis B without delta-agent". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of B18.1 is B18 ("Chronic viral hepatitis"). B18.1 provides a more specific classification within this category.
B18.1 is located in Section B15-B19 — "Viral hepatitis" within Chapter 1 of the ICD-10-CM Tabular List.
Use B18.1 when the patients documented diagnosis matches "Chronic viral hepatitis B without delta-agent" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Chronic viral hepatitis B without delta-agent is B18.1.
Yes, B18.1 can be used as a primary diagnosis code since it is billable and specific.
B18.1 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, B18.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.