ICD-10 Code H73.21 – Unspecified Myringitis, Right Ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.21 – Unspecified myringitis, right ear
What it is
H73.21 identifies inflammation of the right tympanic membrane when the record does not specify the exact type of myringitis. Use it when documentation clearly says the right ear is affected but gives no further detail.
Clinical signs
Typical findings may include ear pain, redness, or irritation of the tympanic membrane, and sometimes hearing discomfort. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents myringitis of the right ear and does not name a specific subtype. It also fits when the note lists only “myringitis” with right-sided laterality and no additional descriptors. If the record is unclear, check documentation before coding.
Do not use for
Do not use this code for left or bilateral myringitis, or for ear conditions that are not inflammation of the tympanic membrane. If another diagnosis is documented, code that condition instead.
Coding tip
Confirm laterality and whether the provider specified a more exact form of myringitis before assigning H73.21.