To best of my knowledge there is no such scale. It's an interesting idea. We can develop one using neglect for domains of Nutrition,Emotional,Healthcare Access,Educational Opportunity,Employment Opportunities etc.

See the following for a discussion of this issue:

Stowman, S.A, & Donohue, B. (2005). Assessing child neglect: A review of standardized measures. Aggression and Violent Behavior, 10, 491–512.

you may check out the ISPCAN tool ICASTC -H,R. there are aspects of it that measure neglect

Authored by adam zolotor et al in child abuse and neglect, ? Year 2012