ICD-10 Code H68.10 – Unspecified obstruction of Eustachian tube (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.10 – Unspecified obstruction of Eustachian tube
What it is
H68.10 identifies blockage or poor opening of the Eustachian tube when the cause is not specified. Use it when documentation confirms obstruction, but does not name a more specific type or cause.
Clinical signs
Common findings include ear fullness, pressure, muffled hearing, or popping. Clinical features vary; refer to documentation, and note any otoscopic or audiologic evidence if recorded.
When to use this code
Use this code when the provider documents Eustachian tube obstruction without further detail. It also fits cases described as blocked or dysfunctional Eustachian tube when the record does not support a more specific code.
Choose the unspecified code only after reviewing the note for laterality, chronicity, or an underlying cause. If the chart names a related condition, code that documented diagnosis instead.
Do not use for
Do not use H68.10 when the record specifies a different Eustachian tube disorder, such as patulous tube or another named condition. Check documentation if the cause is actually otitis media or another ear diagnosis.
Coding tip
Code H68.10 only when obstruction is documented and no more specific Eustachian tube code is supported.