ICD-10 Code H73.0 – Acute myringitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.0 – Acute myringitis
What it is
Acute myringitis is an acute inflammation of the tympanic membrane, the eardrum. Use this code when documentation identifies myringitis as the primary diagnosis.
Clinical signs
Typical findings may include ear pain, a red or inflamed eardrum, and sometimes blistering or visible surface irritation. Clinical features vary; refer to documentation.
When to use this code
Use H73.0 when the provider documents acute myringitis or acute inflammation limited to the tympanic membrane. It may be used when the note clearly distinguishes it from otitis media or other ear disorders. If the record is unclear, check documentation.
Do not use for
Do not use this code for otitis media, chronic ear disease, or nonspecific ear pain without documented myringitis. Do not assume eardrum involvement unless the provider states it.
Coding tip
Confirm that the diagnosis specifically names the tympanic membrane, not just “ear infection,” before assigning H73.0.