ICD-10 Code J04 – Acute laryngitis and tracheitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J04 – Acute laryngitis and tracheitis
What it is
J04 identifies an acute inflammation of the larynx and trachea. Use it when documentation states acute laryngitis, acute tracheitis, or both together.
Clinical signs
Typical findings include hoarseness, cough, throat irritation, and upper-airway discomfort. Clinical features vary; refer to documentation, especially if symptoms suggest a viral upper respiratory infection.
When to use this code
Use J04 when the provider documents an acute inflammatory process involving the larynx or trachea without a more specific subtype. It also fits records that clearly describe acute laryngotracheitis. If the note only says “laryngitis” or “tracheitis,” code the documented condition and check for added specificity.
Do not use for
Do not use J04 for chronic laryngeal or tracheal disease, croup, or isolated symptoms without a confirmed diagnosis. Check documentation if the record suggests another respiratory infection.
Coding tip
Verify whether the provider documented laryngitis, tracheitis, or both before assigning J04.