ICD-10 Code H68.12 – Intrinsic cartilagenous obstruction of Eustachian tube (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H68.12 – Intrinsic cartilagenous obstruction of Eustachian tube
What it is
This code identifies blockage within the cartilaginous portion of the Eustachian tube. It means the tube cannot open normally, which can impair pressure equalization and middle-ear drainage.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include ear fullness, popping, muffled hearing, or evidence of middle-ear pressure problems on exam.
When to use this code
Use H68.12 when the provider documents intrinsic cartilaginous obstruction of the Eustachian tube as the diagnosis. Apply it when the obstruction is the specific condition being evaluated, followed, or treated in the encounter.
Do not substitute a broader Eustachian tube disorder code if the record clearly specifies the cartilaginous obstruction. Check documentation when the note only mentions dysfunction, congestion, or ear symptoms without a definitive diagnosis.
Do not use for
Do not use this code for general ear pain, otitis media, or nonspecific Eustachian tube dysfunction unless the cartilaginous obstruction is documented. Check documentation for the exact anatomic site and cause.
Coding tip
Code only when the provider names intrinsic cartilaginous obstruction; otherwise, query or choose the documented Eustachian tube disorder.