Acute Bacterial Conjunctivitis

Acute Bacterial Conjunctivitis is an inflammation of the conjunctiva caused by bacterial infection, leading to redness, discharge, and discomfort in the eye. Key clinical points include: 1) Commonly presents with purulent discharge, 2) Often associated with other upper respiratory infections, 3) Highly contagious, especially in children, 4) Treatment typically involves topical antibiotics. The etiology often involves bacteria such as Staphylococcus aureus and Streptococcus pneumoniae. Pathophysiologically, the infection leads to increased vascular permeability and inflammatory cell infiltration. Clinically, patients may report symptoms such as redness, itching, and a gritty sensation in the eye, along with a yellow or green discharge. Typical use cases for this diagnosis code include outpatient visits for patients presenting with these symptoms, particularly in pediatric populations.