ICD-10 Code H69.91 – Unspecified Eustachian tube disorder, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H69.91 – Unspecified Eustachian tube disorder, right ear
What it is
Use this code for a right-sided Eustachian tube problem when the documentation does not specify a more exact diagnosis. It indicates dysfunction or disorder affecting pressure equalization and middle-ear ventilation.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include ear fullness, popping, muffled hearing, or pressure changes, but the chart must support right ear involvement.
When to use this code
Assign H69.91 when the provider documents an unspecified Eustachian tube disorder limited to the right ear. Use it when the record lacks a more specific subtype, such as obstructive or patulous dysfunction.
It is appropriate for outpatient or encounter notes that describe right-sided Eustachian tube abnormality without further detail. Check documentation if the note mentions otitis media, effusion, or another distinct ear condition.
Do not use for
Do not use this code for left or bilateral Eustachian tube disorders, or when a more specific Eustachian tube diagnosis is documented. Do not use it for unrelated middle-ear disease.
Coding tip
Verify laterality and specificity first; if the note does not clearly say right ear and unspecified disorder, check documentation before coding.