B30Header code — not billable

Viral conjunctivitis

Chapter
1. Certain infectious and parasitic diseases
Category
B30
Effective date
October 1, 2026

Related codes in category B30

B30.0Keratoconjunctivitis due to adenovirusYesB30.1Conjunctivitis due to adenovirusYesB30.2Viral pharyngoconjunctivitisYesB30.3Acute epidemic hemorrhagic conjunctivitis (enteroviral)YesB30.8Other viral conjunctivitisYesB30.9Viral conjunctivitis, unspecifiedYes

Frequently asked questions

What is ICD-10 code B30?

B30 is an ICD-10-CM diagnosis code for Viral conjunctivitis.

Is B30 a billable code?

No. B30 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is B30 in?

B30 falls under Chapter 1: Certain infectious and parasitic diseases.

When did B30 become effective?

B30 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to B30?

B30 belongs to category B30, which includes 6 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.