B25-B34: Other viral diseases

B30: Viral conjunctivitis

Viral conjunctivitis, often referred to as "pink eye," is an inflammation of the conjunctiva, the transparent layer covering your eye and inner eyelid. This group of conditions is typically caused by viruses, some of which are the same viruses that cause the common cold or certain respiratory infections. The condition is highly contagious and can be spread easily through direct contact with an infected individual's tears or respiratory secretions, touching contaminated surfaces, or even through the air, such as when an infected person coughs or sneezes. Common symptoms include redness, itching, a gritty feeling in the eye, and a watery discharge. Some types of viral conjunctivitis may be accompanied by other symptoms like runny nose or sore throat. Generally, the condition starts in one eye and can easily spread to the other. It is self-limiting and typically resolves on its own within 1-2 weeks without causing permanent vision damage.