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.
Observation & assessment of an unstable condition
Post-fall surveillance — especially with anticoagulation, a head strike, or a cognitive change — requires a licensed clinician to detect delayed injury and decide on escalation. The potential for change makes the observation skilled and daily.
Management & evaluation of the care plan
Designing, evaluating, and continuously adjusting the fall-prevention plan for a high-risk resident requires RN judgment integrating gait, cognition, medications, and environment.