ICD-10 Code H73.01 – Bullous myringitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.01 – Bullous myringitis
What it is
Bullous myringitis is inflammation of the eardrum with blister-like lesions on the tympanic membrane. Use this code when documentation specifically identifies bullous myringitis.
Clinical signs
Typical findings include ear pain, a red or inflamed tympanic membrane, and visible bullae or vesicles on the eardrum. Clinical features vary; refer to documentation.
When to use this code
Use H73.01 when the provider diagnoses bullous myringitis on exam or in the assessment. It may be used when the record clearly describes blistering of the tympanic membrane, even if other ear symptoms are noted.
Do not use for
Do not use this code for generic otitis media, otalgia, or ear infection without documented bullous myringitis. Check documentation if the note only mentions middle ear disease or eardrum redness.
Coding tip
Code the condition only when the chart names bullous myringitis or clearly documents eardrum bullae.