ICD-10-CM B16 is the diagnosis code for Acute hepatitis B. This code falls under the section "Viral hepatitis" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where B16 sits in the ICD-10-CM classification helps ensure proper coding:
No, B16 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
B16 is the ICD-10-CM diagnosis code for "Acute hepatitis B". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
B16 is located in Section B15-B19 — "Viral hepatitis" within Chapter 1 of the ICD-10-CM Tabular List.
B16 has 4 sub-code(s) that provide more specific detail: B16.0, B16.1, B16.2, B16.9.
Use B16 when the patients documented diagnosis matches "Acute hepatitis B" 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 Acute hepatitis B is B16.
No, B16 is non-billable. Use a more specific sub-code for primary diagnosis billing.
B16 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, B16 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.