If your child goes into hospital – If your child goes into hospital, CDP should continue to be paid indefinitely, as long as your child continues to meet the other qualifying conditions (see 3 above ).
DACYP(S) Regs, reg 21

If your child goes into a care home – If your child goes into a care home or residential educational establishment, the care component will be suspended after 28 days. The rules are similar to those of DLA; see Chapter 3(8) .
DACYP(S) Regs , regs 17, 19 & 20