Chronic pharyngitis

This code represents a persistent, long-standing inflammation of the pharynx, often characterized by a sore throat, irritation, or scratchiness lasting for weeks or months. It is not an acute infection but rather a chronic inflammatory process.

Use this code when documentation indicates a diagnosis of chronic pharyngitis, often described as recurrent or persistent pharyngeal discomfort. Supporting documentation should clearly distinguish it from an acute episode.

• Differentiate from acute pharyngitis (e.g., 462); chronic implies a prolonged duration.
• Look for terms like "recurrent sore throat," "persistent pharyngeal irritation," or "chronic throat inflammation."
• Do not use for pharyngitis due to specific infectious agents if a more specific code is available (e.g., streptococcal pharyngitis).