Viral conjunctivitis (B30)

ICD-10 code B30 and its subcodes are specifically used to classify different types of viral conjunctivitis, an eye infection caused by various viruses. These codes help distinguish the exact viral cause and clinical form of conjunctivitis, facilitating precise diagnosis and treatment tracking.

The base code B30 covers general viral conjunctivitis, while subcodes provide more detail. For example, B30.0 covers keratoconjunctivitis caused by adenovirus, also known as epidemic keratoconjunctivitis or adenoviral keratitis, which affects the cornea and conjunctiva. B30.1 captures conjunctivitis caused by adenovirus without corneal involvement, often called acute adenoviral follicular conjunctivitis. B30.2 is for viral pharyngoconjunctivitis, linking viral eye infection with throat symptoms. B30.3 represents acute epidemic hemorrhagic conjunctivitis, typically caused by enterovirus, characterized by conjunctival hemorrhages. B30.8 includes other viral conjunctivitis, such as that due to COVID-19 infection. Finally, B30.9 is reserved for unspecified viral conjunctivitis cases. This clear classification helps medical professionals and coders accurately identify the specific viral conjunctivitis type when assigning the ICD-10 code for viral conjunctivitis.