471.0
ICD-9-CMThis code represents the presence of a benign, often pedunculated or sessile, growth originating from the mucous membrane lining the nasal cavity. These polyps are typically non-cancerous and can cause symptoms such as nasal obstruction, discharge, and reduced sense of smell. They are distinct from polyps found in other sinonasal areas.
Use this code when documentation clearly indicates a polyp specifically located within the nasal cavity. This diagnosis is supported by findings from anterior rhinoscopy, nasal endoscopy, or imaging studies (e.g., CT scan) confirming the presence and location of the polyp. It is appropriate for both initial diagnosis and follow-up care of nasal polyps.
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