Section 517.005 - Persons Institutionalized for Mental Disease(A) Individuals younger than 18 years old and those 65 years of age or older, who are patients in a public or private institution for mental disease, may be eligible for MassHealth.(B) Individuals who reach the age of 18 while they are patients in an institution for mental disease may be eligible for MassHealth until they reach age 22, provided they are disabled in accordance with Title XVI requirements.(C) Individuals between 18 and 65 years of age who are patients in public or private institutions for mental disease are not eligible for MassHealth, except as provided in 130 CMR 517.005(B). Such individuals may establish eligibility for MassHealth when entering an acute hospital from a public or private institution for mental disease if otherwise categorically and financially eligible.Amended by Mass Register Issue 1355, eff. 12/29/2017.