ICD-10 Code J05.1 – Acute epiglottitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J05.1 – Acute epiglottitis
What it is
J05.1 identifies acute epiglottitis, an acute inflammation of the epiglottis that can narrow the airway. Use it when the documentation specifically names acute epiglottitis.
Clinical signs
Typical findings include sudden sore throat, painful swallowing, fever, muffled voice, and drooling. Clinical features vary; refer to documentation, especially when airway compromise is noted.
When to use this code
Use J05.1 when the provider documents acute epiglottitis as the diagnosis, whether confirmed clinically or by imaging or laryngoscopic evaluation. It may be used in emergency or inpatient records where the condition is the reason for evaluation or treatment.
If the chart only says throat pain, laryngitis, or unspecified upper-airway infection, do not assume epiglottitis. Check documentation for explicit diagnostic wording.
Do not use for
Do not use this code for chronic epiglottitis, nonspecific sore throat, or other upper respiratory infections without epiglottic involvement. Check documentation when the diagnosis is unclear.
Coding tip
Code J05.1 only when the record clearly states acute epiglottitis; if the airway diagnosis is uncertain, query the provider.