| 600 / | HD | SURGERY |
| 300 | DF | DIAGNOSTIC TESTING {38} |
| 407 | DF | .~ Detecting nuclear, electromagnetic, or ultrasonic radiation {11} |
| 437 | DF | .~.~ Ultrasonic {10} |
| 443 | DF | .~.~.~ Anatomic image produced by reflective scanning {3} |
| 447 | ![]() | .~.~.~.~ Electronic array scanning |