This rule adopts, with one change, the rule for evaluating growth disorders in children we proposed in a notice of proposed rulemaking (NPRM) published in the Federal Register on May 22, 2013. Several body systems in the Listing of Impairments (listings) contain listings for children based on impairment of linear growth or weight loss. We are replacing those listings with new listings for low birth weight (LBW) and failure to thrive; a new listing for genitourinary impairments; and revised listings for growth failure in combination with a respiratory, cardiovascular, digestive, or immune system disorder. These revisions reflect our program experience, advances in medical knowledge, and comments we received from medical experts and the public.