| 600 / | HD | SURGERY |
| 300 | DF | DIAGNOSTIC TESTING {38} |
| 407 | DF | .~ Detecting nuclear, electromagnetic, or ultrasonic radiation {11} |
| 476 | ![]() | .~.~ Visible light radiation {3} |
| 477 | DF | .~.~.~> With comparison means (e.g., ratio of or comparison to a standard) |
| 478 | DF | .~.~.~> Light conducting fiber inserted into a body |
| 479 | DF | .~.~.~> Cardiovascular testing {1} |