Polypoid sinus degeneration

This code describes a non-neoplastic, inflammatory condition characterized by edematous, polyp-like mucosal thickening within the paranasal sinuses. It represents a degenerative change of the sinus lining, often associated with chronic inflammation or allergic processes, leading to obstruction and symptoms.

Use this code when documentation explicitly states "polypoid sinus degeneration" or describes diffuse, non-discrete polypoid changes within the sinus mucosa. This diagnosis is typically made based on imaging studies (e.g., CT scan of sinuses) or endoscopic examination findings.

• Differentiate from true nasal polyps (J33.0) which are discrete, pedunculated or sessile growths.
• Consider coding any underlying conditions, such as chronic sinusitis (J32.-), if documented as the cause or comorbidity.
• Ensure the documentation specifies "degeneration" or "polypoid changes" rather than just "mucosal thickening" to support this specific code.