Chronic frontal sinusitis

This code signifies a persistent, long-term inflammation of the frontal sinuses, characterized by symptoms lasting 12 weeks or more. It involves the mucosal lining of the frontal sinus cavities, often leading to impaired drainage and recurrent infections.

Apply this code when documentation clearly indicates a diagnosis of chronic frontal sinusitis. This typically includes physician notes detailing persistent symptoms such as facial pain/pressure over the forehead, nasal discharge, and possibly headache, lasting for an extended period. Imaging studies (e.g., CT scan) confirming chronic inflammatory changes in the frontal sinuses also support its use.

• Differentiate from acute frontal sinusitis (J01.10) based on symptom duration.
• Ensure documentation specifies "chronic" and "frontal" to avoid miscoding.
• Consider additional codes for associated conditions like nasal polyps (J33.-) or other chronic sinusitis types if present.