Fig. 1. The continuum of AI CPT code descriptors.

Appendix S is intended to enable discrete and differentiable code descriptors by accurately characterizing the “work done by machines” relative to the work of the physician or other qualified health care professional. Therefore, these same descriptors may be useful also in regulatory labeling of novel products like “Software as a Medical Device” (SaMD) and in valuation, coverage and payment policy for the associated novel services or procedures, like “Software as a Service” (SaaS).