Acute sphenoidal sinusitis

This code signifies an acute inflammatory process affecting the sphenoid sinuses. It involves a sudden onset of infection or inflammation within these air-filled cavities located deep within the skull, often presenting with symptoms like headache, facial pain, and postnasal drip.

Use this code when documentation clearly indicates an acute infection or inflammation localized to the sphenoid sinuses. This diagnosis is typically supported by clinical findings, imaging studies (e.g., CT scan), and potentially endoscopic examination confirming sphenoid sinus involvement.

• Ensure documentation specifies "acute" and "sphenoidal" to differentiate from chronic or other sinus involvement.
• Do not use for generalized acute sinusitis without specific sphenoid involvement.
• Consider co-reporting with codes for causative organisms if identified and documented.