ICD-10 Code H66.002 – Acute suppurative otitis media without spontaneous rupture of ear drum, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H66.002 – Acute suppurative otitis media without spontaneous rupture of ear drum, left ear
What it is
This code identifies an acute bacterial middle ear infection in the left ear with pus formation, but the eardrum has not ruptured on its own. Use it when documentation specifically states left-sided acute suppurative otitis media without spontaneous perforation.
Clinical signs
Typical findings include ear pain, fever, irritability, and a bulging, erythematous tympanic membrane. Clinical features vary; refer to documentation, especially for laterality and whether the eardrum remains intact.
When to use this code
Use H66.002 when the provider documents acute suppurative otitis media in the left ear and notes no spontaneous rupture of the tympanic membrane. This code fits confirmed cases in outpatient, urgent care, or inpatient records when the diagnosis is clearly established. Verify laterality and avoid guessing if the note is incomplete.
Do not use for
Do not use this code if the record states right ear, bilateral disease, or spontaneous eardrum rupture. Check documentation if the diagnosis is nonsuppurative, chronic, or unspecified.
Coding tip
Match the code to the documented ear and membrane status; laterality and rupture status drive correct selection.