Other diseases of upper respiratory tract (470-478)

473 Chronic sinusitis

• 473.0 - Chr maxillary sinusitis
• 473.1 - Chr frontal sinusitis
• 473.2 - Chr ethmoidal sinusitis
• 473.3 - Chr sphenoidal sinusitis
• 473.8 - Chronic sinusitis NEC
• 473.9 - Chronic sinusitis NOS