03-03-2023-0346 - 12.13 Eating disorders (see 12.00B10), satisfied by A and B:

12.13 Eating disorders (see 12.00B10), satisfied by A and B: Medical documentation of a persistent alteration in eating or eating-related behavior that results in a change in consumption or absorption of food and that significantly impairs physical or psychological health.

AND Extreme limitation of one, or marked limitation of two, of the following areas of mental functioning (see 12.00F):Understand, remember, or apply information (see 12.00E1).
Interact with others (see 12.00E2).
Concentrate, persist, or maintain pace (see 12.00E3).
Adapt or manage oneself (see 12.00E4).

https://www.ssa.gov/disability/professionals/bluebook/12.00-MentalDisorders-Adult.htm#12_13

Your mental disorder in this listing category is “serious and persistent;” that is, you have a medically documented history of the existence of the disorder over a period of at least 2 years, and there is evidence of both: Medical treatment, mental health therapy, psychosocial support(s), or a highly structured setting(s) that is ongoing and that diminishes the symptoms and signs of your mental disorder (see 12.00G2b); and
Marginal adjustment, that is, you have minimal capacity to adapt to changes in your environment or to demands that are not already part of your daily life (see 12.00G2c).

https://www.ssa.gov/disability/professionals/bluebook/12.00-MentalDisorders-Adult.htm#12_13

100.00 Low Birth Weight and Failure to Thrive - Childhood
https://www.ssa.gov/disability/professionals/bluebook/100.00-GrowthImpairment-Childhood.htm
112.13
Eating disorders
112.13 Eating disorders (see 112.00B10), for children age 3 to attainment of age 18, satisfied by A and B: Medical documentation of a persistent alteration in eating or eating-related behavior that results in a change in consumption or absorption of food and that significantly impairs physical or psychological health.

AND Extreme limitation of one, or marked limitation of two, of the following areas of mental functioning (see 112.00F): Understand, remember, or apply information (see 112.00E1).
Interact with others (see 112.00E2).
Concentrate, persist, or maintain pace (see 112.00E3).
Adapt or manage oneself (see 112.00E4).

https://www.ssa.gov/disability/professionals/bluebook/112.00-MentalDisorders-Childhood.htm#112_13