| 600 / | HD | SURGERY |
| 300 | DF | DIAGNOSTIC TESTING {38} |
| 309 | DF | .~ Measuring or detecting nonradioactive constituent of body liquid by means placed against or in body throughout test {8} |
| 310 | DF | .~.~ Infrared, visible light, or ultraviolet radiation directed on or through body or constituent released therefrom {9} |
| 322 | DF | .~.~.~ Determining blood constituent {2} |
| 323 | DF | .~.~.~.~ Oxygen saturation, e.g., oximeter {13} |
| 331 | DF | .~.~.~.~.~ Calibrated {1} |
| 332 | | .~.~.~.~.~.~ Inserted in body |