ICD-10 Code H68.129 – Intrinsic cartilagenous obstruction of Eustachian tube, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.129 – Intrinsic cartilagenous obstruction of Eustachian tube, unspecified ear
What it is
This code identifies blockage of the cartilaginous portion of the Eustachian tube in an unspecified ear. It is used when documentation states the obstruction is intrinsic, but laterality is not specified.
Clinical signs
Typical findings include ear fullness, pressure, muffled hearing, or a sense of popping with swallowing. Clinical features vary; refer to documentation.
When to use this code
Use H68.129 when the provider documents intrinsic cartilaginous obstruction of the Eustachian tube and does not specify right or left ear. You may also use it when the note confirms the diagnosis but lacks laterality details. Check documentation if the record suggests a different Eustachian tube disorder.
Do not use for
Do not use this code for nonspecific ear pain, otitis media, or external ear obstruction. If the obstruction is described elsewhere or another ear condition is documented, choose the more accurate code.
Coding tip
Verify laterality first; if the ear is identified, use the specified code instead of the unspecified one.