Current Atresia of the external ear or severe microtia
Current Atresia of the external ear or severe microtia that prevents or interferes with the proper wearing of hearing protection or protective mask/ helmet
What This Code Means
Receiving DQ code D121.00 means the DoDMERB physician reviewer determined that your medical history or exam findings related to current atresia of the external ear or severe microtia do not currently meet Department of Defense accession standards as defined in DoDI 6130.03.
This does not end your candidacy. Many conditions flagged under this code are waiverable. The next step is understanding the exact standard that applies to your situation and whether a waiver request is appropriate for your commissioning source.
Official Regulation Text
From DoDI 6130.03-V1, “Medical Standards for Military Service,” Change 6 (February 3, 2026)
“Current defect that would require either recurrent evaluation or treatment or that may reasonably be expected to prevent or interfere with the proper wearing or use of military equipment (including hearing protection) including atresia of the external ear or severe microtia, congenital or acquired stenosis, chronic otitis externa, or severe external ear deformity.”
“Current perforation of the tympanic membrane or history of surgery to correct perforation during the last 6 months.”
“Chronic Eustachian tube dysfunction as evidenced by any of these conditions in the previous 24 months: (1) More than one episode of acute otitis media, serous otitis media, or persistent middle ear effusion; (2) Pressure equalization tubes; or (3) Any atraumatic tympanic membrane rupture.”
“History of any surgically implanted hearing device.”
“History of any inner or middle ear surgery.”
Waiver Outlook for Hearing & ENT Conditions
Key Factors for Waiver Approval
- Passing functional hearing tests and ability to hear spoken commands
- No history of recurrent ear infections or significant conductive hearing loss
- Comprehensive audiometric testing showing stability over time
- ENT specialist letter confirming hearing loss does not impede operational duties
If your initial hearing test results seem inaccurate, you can undergo retesting at a certified audiology center at your own expense. Updated results with a specialist letter have led to reversals of disqualification.
This condition is covered in depth in The Ultimate DoDMERB Handbook by LTC Kirkland & Capt Dach — including real success scenarios, remedial exam strategies, and the complete waiver playbook. Get the handbook →
Read Our Full Guide on Hearing & ENT Conditions
Learn how DoDMERB evaluates hearing & ent conditions, common waiver scenarios, documentation tips, and what to expect throughout the process.
Read the hearing & ent guide