Healthcare Common Procedure Coding System Healthcare Common Procedure Coding System (HCPCS) codes are used to code items, equipment, drugs, and supplies (such as wheelchairs, walkers, wound care dressings, IV nutrition or oxygen used in the home).
The final weight/weight concentration is 1% when 1 g of active ingredient powder is mixed with 99 g of white petrolatum. Solution: 1 g (active)/ 100 g (total); 1 g,100 g=0.01; [ 0.01*100=1%. ]