ICD-10 Code H73.013 – Bullous myringitis, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.013 – Bullous myringitis, bilateral
What it is
Bullous myringitis is an inflammatory condition of the eardrum marked by fluid-filled blisters. Bilateral means it affects both ears.
Clinical signs
Typical findings include ear pain, a red or inflamed tympanic membrane, and visible bullae on the eardrum. Clinical features vary; refer to documentation.
When to use this code
Use H73.013 when the provider documents bullous myringitis in both ears. Choose it when the record clearly identifies bilateral involvement rather than a single ear or nonspecific ear pain. Check documentation if laterality is unclear.
Do not use for
Do not use this code for unilateral bullous myringitis or for generic otitis media without bullae. If the note does not confirm bilateral disease, check documentation.
Coding tip
Confirm both laterality and the specific term “bullous myringitis” before assigning H73.013.