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.
Covered skilled procedure; observation & assessment
Post-operative gynecologic care and pessary care are skilled services under Chapter 8, and the post-gynecologic-surgery course carries a reasonable potential for hemorrhage, cuff dehiscence, infection, or VTE that requires daily nursing judgment to detect.