What is the nature of business for Pranic Healing

What is the nature of business for distance healing services such as pranic healing?

I am confused between the following:

• Practice of other alternative medicine (18019)
• Other healthcare services (18020)

Or should I just file under Other services n.e.c. (21008)?

Also, if it is one of the above codes, can I avail the benefits of presumptive taxation under 44ADA?

If it's 21008, can I avail presumptive taxation under 44ADA?