Map which Chapter 8 bases apply, then show the need is daily and can be met only in a SNF (the practical-matter test). This is what a coverage reviewer looks for on a Part A day.
Rehabilitation nursing (a covered skilled service)
The initial/skilled phase of a restorative program and rehabilitation nursing procedures are recognized skilled services under Chapter 8 when required; the RN designs, evaluates, and adjusts the program.
Management & evaluation; teaching & training
Managing and evaluating the restorative plan and training CNAs on safe carryover require RN judgment and are needed regularly.