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.
Skilled procedure
Insertion, sterile irrigation, and replacement of catheters are direct skilled services under Chapter 8 when required.
Observation & assessment; management & evaluation
Assessing UTI/retention/fluid status and managing the continence/catheter plan for an at-risk resident require RN judgment, especially when the presentation is a mental-status change.