404.1409—Purposes of using compensation.
Compensation which is treated as wages under § 404.1408 shall be used, together with wages (see subpart K of this part) and self-employment income (see subpart K of this part), for purposes of:
(a)
Determining an individual's insured status for monthly benefits or the lump-sum death payment (see subpart B of this part);
(c)
Determining an individual's entitlement to the establishment of a period of disability (see subpart B of this part for disability insured status requirements); and