ICD-10 Code H73.891 – Other specified disorders of tympanic membrane, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H73.891 – Other specified disorders of tympanic membrane, right ear
What it is
This code identifies a documented disorder of the right tympanic membrane that does not fit a more specific diagnosis. Use it when the provider names a distinct eardrum abnormality and right-sided location, but no better code is available.
Clinical signs
Clinical features vary; refer to documentation. Findings may include an abnormal right tympanic membrane on otoscopy, such as scarring, thickening, or other described change, with symptoms depending on the underlying problem.
When to use this code
Use H73.891 when the record clearly states an “other specified” disorder of the right tympanic membrane and the note supports the laterality. It is appropriate when the diagnosis is more specific than a nonspecific ear complaint but still not captured by a dedicated code. Check documentation if the provider only describes pain, hearing loss, or middle-ear disease without naming the membrane disorder.
Do not use for
Do not use this code for left or bilateral tympanic membrane disorders, or for conditions that have a more specific ICD-10-CM code. Do not assign it when the chart lacks a documented tympanic membrane abnormality.
Coding tip
Verify the provider’s exact wording and ear laterality before coding, because “other specified” codes depend on precise documentation.