The relation between concept 0 and pd

Q: What is the relation between HC=0 or 0 concept and pd? Can 0 concept be derived from pd directly?

A: In concept 0, 0 represents absence or the whole. Concept 0 was originated in India, not my invention. Use of 0 in health care, however, maybe my invention. In Health Oriented Index, 0 denotes Health (=absence of needs of care; HC0), while in global anatomy, 0 denotes the whole body.
pd is the human centered base for appraisal of everything we do and everything we use to maintain or restore health.
pd skill and settings achieve the desired outcomes with least effort. So it is in line with 0 concept.    170318