20 C.F.R. § 416.911 Definition of disabling impairment.
Title 20 - Employees' Benefits
(a) If you are an adult: (1) A disabling impairment is an impairment (or combination of impairments) which, of itself, is so severe that it meets or equals a set of criteria in the Listing of Impairments in appendix 1 of subpart P of part 404 of this chapter or which, when considered with your age, education and work experience, would result in a finding that you are disabled under §416.994, unless the disability redetermination rules in §416.987(b) apply to you. (2) If the disability redetermination rules in §416.987 apply to you, a disabling impairment is an impairment or combination of impairments that meets the requirements in §§416.920 (c) through (f). (b) If you are a child, a disabling impairment is an impairment (or combination of impairments) that causes marked and severe functional limitations. This means that the impairment or combination of impairments: (1) Must meet, medically equal, or functionally equal the listings, or (2) Would result in a finding that you are disabled under §416.994a. (c) In determining whether you have a disabling impairment, earnings are not considered. [62 FR 6421, Feb. 11, 1997, as amended at 65 FR 54777, Sept. 11, 2000]
Title 20: Employees' Benefits
PART 416—SUPPLEMENTAL SECURITY INCOME FOR THE AGED, BLIND, AND DISABLED
Subpart I—Determining Disability and Blindness
Definition of Disability
§ 416.911 Definition of disabling impairment.