The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.
| Level | Code | Title | |
|---|---|---|---|
| 1 | V | Various | |
| 2 | V09 | Diagnostic radiopharmaceuticals | |
| 3 | V09X | Other diagnostic radiopharmaceuticals | |
| 4 | V09XX | Various diagnostic radiopharmaceuticals | |
| 5 | V09XX03 | Selenium (75Se) norcholesterol |
