ICD-10 Code H68.102 – Unspecified obstruction of Eustachian tube, left ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.102 – Unspecified obstruction of Eustachian tube, left ear
What it is
This code identifies blockage or impaired opening of the Eustachian tube in the left ear when the cause is not specified. It is used when the record documents obstruction but does not name a more specific diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include ear fullness, pressure, muffled hearing, or popping, but you should code only what is documented.
When to use this code
Use H68.102 when the provider documents obstruction of the left Eustachian tube and does not identify a more specific cause. It also fits cases where the note states “unspecified obstruction” or similar wording. If the record names a different ear or a more specific condition, choose that code instead.
Do not use for
Do not use this code for right ear or bilateral obstruction. Also avoid it when the documentation supports a more specific Eustachian tube disorder or another ear diagnosis. Check documentation.
Coding tip
Verify laterality and specificity in the provider note before assigning H68.102.