478.0
ICD-9-CMThis code signifies an enlargement or overgrowth of the nasal turbinates, which are bony structures within the nasal passages. This hypertrophy can lead to chronic nasal obstruction, difficulty breathing, and other symptoms due to reduced airflow. It often results from chronic inflammation, allergies, or irritants.
Use this code when documentation clearly indicates an abnormal increase in the size of the nasal turbinates, typically identified during a physical examination (e.g., rhinoscopy) or imaging studies. This diagnosis is appropriate for patients presenting with persistent nasal congestion, mouth breathing, or hyposmia attributed to turbinate enlargement. Supporting documentation should specify the turbinate hypertrophy as the primary diagnosis or a significant contributing factor to the patient's symptoms.
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