ICD-10 Code J32.3 – Chronic sphenoidal sinusitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J32.3 – Chronic sphenoidal sinusitis
What it is
J32.3 identifies long-lasting inflammation of the sphenoid sinus, one of the air-filled spaces deep in the skull behind the nose. Use it when documentation states chronic sphenoidal sinusitis or persistent sphenoid sinus inflammation.
Clinical signs
Clinical features may include deep headache, facial pressure, postnasal drainage, or nasal congestion. Because sphenoid sinus disease can be subtle, clinical features vary; refer to documentation.
When to use this code
Use J32.3 when the record clearly documents chronic sphenoidal sinusitis, including chronic infection or inflammation limited to the sphenoid sinus. It may also apply when the provider specifies chronic sphenoid sinus disease without another more specific code. If the note only says sinusitis and does not identify the sphenoid sinus, check documentation.
Do not use for
Do not use this code for acute sphenoidal sinusitis or for sinusitis affecting other sinuses only. Also avoid it when the documentation is nonspecific or when another sinus site is clearly identified.
Coding tip
Confirm the sinus site and chronicity in the provider note before assigning J32.3.