ICD-10 Code H68.1 – Obstruction of Eustachian tube (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.1 – Obstruction of Eustachian tube
What it is
H68.1 identifies blockage or poor opening of the Eustachian tube, the channel that helps equalize pressure and drain fluid from the middle ear. Use it when documentation states Eustachian tube obstruction or dysfunction.
Clinical signs
Common findings include ear fullness, pressure, muffled hearing, popping, or discomfort, often with abnormal middle-ear pressure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents obstruction of the Eustachian tube as the diagnosis, including chronic or acute blockage. It may also fit cases described as Eustachian tube dysfunction when the record clearly supports obstruction. Check documentation if the note is vague.
Do not use for
Do not use H68.1 for unrelated ear pain, otitis media, or hearing loss without documented Eustachian tube obstruction. If the chart only says “ear congestion” or “pressure,” check documentation.
Coding tip
Assign H68.1 only when the provider links the symptoms to Eustachian tube obstruction, not when the finding is merely suspected.