Which Root Operation does NOT involve taking out solids, fluids or gasses from a body part?

Physician service codes are

a. five-place codes using all numbers or a combination of four numbers and one letter. b. only number codes using 3, 4, or 5 spaces. c. seven-space codes using both letters and numbers. d. number codes using two digits, a decimal, and one or two more digits.

Opioid antagonists include all of the following, except:

A) nalmefene B) naltrexone C) naftifine D) naloxone