ICD-10 Code J32.0 – Chronic maxillary sinusitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J32.0 – Chronic maxillary sinusitis
What it is
J32.0 identifies long-lasting inflammation of the maxillary sinus, the air-filled space in the cheek area. Use this code when documentation clearly states chronic maxillary sinusitis.
Clinical signs
Typical findings include persistent facial pressure, nasal congestion, and thick drainage that lasts over time. Clinical features vary; refer to documentation for confirmed chronic disease.
When to use this code
Use J32.0 when the provider documents chronic inflammation limited to the maxillary sinus, including chronic or recurrent maxillary sinusitis. Code it from the final assessment, imaging report, or specialist note when the diagnosis is established. Check documentation if the record only says sinusitis without site or chronicity.
Do not use for
Do not use this code for acute sinusitis, unspecified sinusitis, or sinus symptoms without a confirmed diagnosis. If another sinus site is named, choose the documented condition instead.
Coding tip
Confirm both chronicity and maxillary location before assigning J32.0.