ICD-10 Code J34.81 – Nasal mucositis (ulcerative) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J34.81 – Nasal mucositis (ulcerative)
What it is
J34.81 identifies ulcerative inflammation of the nasal mucosa. Use it when documentation states nasal mucositis with ulceration or similar wording affecting the lining inside the nose.
Clinical signs
Clinical features may include nasal soreness, crusting, ulceration, irritation, or bleeding. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents ulcerative mucositis of the nose, nasal mucosal ulceration, or a similar diagnosis focused on the nasal lining. It is appropriate when the condition is described as a distinct nasal mucosal inflammatory process, not just nonspecific nasal irritation. Check documentation if the record does not clearly identify ulceration.
Do not use for
Do not use J34.81 for simple rhinitis, sinusitis, or general nasal congestion without mucosal ulceration. If the note only says “nasal pain” or “nosebleed” without mucositis, check documentation.
Coding tip
Code only when ulcerative nasal mucositis is explicitly documented; otherwise, query for clarification.