ICD-10 Code H68.109 – Unspecified obstruction of Eustachian tube, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.109 – Unspecified obstruction of Eustachian tube, unspecified ear
What it is
This code identifies blockage or poor opening of the Eustachian tube when the affected ear is not specified. It is used when the record states obstruction but does not document a more exact cause or side.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include ear fullness, muffled hearing, pressure, or discomfort, but you should code only what is documented.
When to use this code
Use H68.109 when the clinician documents Eustachian tube obstruction without naming the ear or providing a more specific diagnosis. It also fits cases where the note confirms obstruction but laterality or cause is not available. If the chart later specifies the ear or a different condition, update the code accordingly.
Do not use for
Do not use this code when the record identifies a different Eustachian tube disorder, such as acute infection or patulous tube. Also avoid it when the documentation clearly specifies the ear and a more precise code exists.
Coding tip
Check the note for laterality and specificity first; unspecified codes should be a documentation-based choice, not a default.