ICD-10 Code H68.121 – Intrinsic cartilagenous obstruction of Eustachian tube, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.121 – Intrinsic cartilagenous obstruction of Eustachian tube, right ear
What it is
This code identifies blockage of the cartilaginous portion of the Eustachian tube in the right ear. It indicates a right-sided anatomic obstruction that can interfere with normal pressure equalization and drainage.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records may note ear fullness, pressure, muffled hearing, or abnormal tympanic membrane findings consistent with Eustachian tube dysfunction.
When to use this code
Use H68.121 when the provider documents intrinsic cartilagenous obstruction specifically affecting the right Eustachian tube. You should code it when the obstruction is the stated diagnosis, not merely a general complaint of ear pressure.
Check documentation if the note only says Eustachian tube dysfunction, otitis media, or nasal congestion without specifying intrinsic cartilaginous obstruction and right ear involvement.
Do not use for
Do not use this code for left ear, bilateral disease, or unspecified Eustachian tube obstruction. Also avoid it when the record describes a different middle-ear disorder without confirming intrinsic cartilaginous obstruction.
Coding tip
Assign the code only when the right-sided location and intrinsic cartilaginous obstruction are clearly documented.