Daniel G. Fish, The Distinction Between Skilled Care and Custodial Care, NYLJ, Aug. 11, 2021:

Custodial care can safely be provided by someone without an advanced medical degree. There is no medical treatment for the Alzheimer’s patient but she still needs assistance with dressing, toileting, showering, or feeding. This is an example of custodial care. These are typically called activities of daily living.

Custodial illnesses tend to become more prevalent in later life. . . .

Custodial care is most commonly associated with slow moving neurological illnesses such as Alzheimer’s disease or Parkinson’s disease or post stroke

Another term for custodial care is “long term care.”

C.f skilled care