Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes J00-J99 – Diseases of the respiratory system (J00-J99) > 2024 ICD-10-CM Codes J00-J06 – Acute upper respiratory infections (J00-J06) > 2024 ICD-10-CM Codes J04 – Acute laryngitis and tracheitis (J04) > 2024 ICD-10-CM Codes J04.3 – Supraglottitis, unspecified (J04.3)