| Code Value | Definition |
|---|---|
| A | Any organ |
| B | Bone |
| C | Connective tissue (tendons, ligaments, fascia) |
| E | Eyes |
| F | Cornea |
| H | Heart |
| I | Heart Valves |
| K | Kidney |
| L | Liver/Iliac Vessels |
| M | Lymph Nodes |
| N | Intestine |
| P | Pancreas/Islet Cells |
| Q | Pancreas/Spleen/Iliac vessels |
| R | Radius, Humerus & Ulna |
| S | Skin |
| T | Hepatocytes |
| U | Lungs |
| V | Veins |
| W | Cartoid Arteries |
| Z | No organs |