Ok I'm going to try to post some snips and links (this is written for the public and does not appear to include the specifics). More at link:
http://www.socialsecurity.gov/disab...k/102.00-SpecialSensesandSpeech-Childhood.htm
B. How do we evaluate hearing loss?
1. What evidence do we need?
a. We need evidence showing that you have a medically determinable impairment that causes your hearing loss and audiometric measurements of the severity of your hearing loss. We generally require both a complete otologic examination and audiometric testing to establish that you have a medically determinable impairment that causes your hearing loss. You should have this audiometric testing within 2 months of the complete otologic examination. Once we have evidence that you have a medically determinable impairment, we can use the results of later audiometric testing to assess the severity of your hearing loss without another complete otologic examination. We will consider your test scores together with any other relevant information we have about your hearing, including information from outside of the test setting.
b. The complete otologic examination must be performed by a licensed physician (medical or osteopathic doctor). It must include your medical history, your description of how your hearing loss affects you, and the physician's description of the appearance of the external ears (pinnae and external ear canals), evaluation of the tympanic membranes, and assessment of any middle ear abnormalities.
c. Audiometric testing must be performed by, or under the direct supervision of, an otolaryngologist or by an audiologist qualified to perform such tests. We consider an audiologist to be qualified if he or she is currently and fully licensed or registered as a clinical audiologist by the State or U.S. territory in which he or she practices. If no licensure or registration is available, the audiologist must be currently certified by the American Board of Audiology or have a Certificate of Clinical Competence (CCC-A) from the American Speech-Language-Hearing Association (ASHA).