| Koriander / FEIA | Dermatologie | |
| Krabbe / FEIA | Dermatologie | |
| Kräutermix (w1, w6, w7, w8, w12) / FEIA | Dermatologie | |
| Kräutermix (w1, w6, w9, w10, w11) / FEIA | Dermatologie | |
| Kräutermix (w6, w9, w10, w12, w20) / FEIA | Dermatologie | |
| Kümmel / FEIA | Dermatologie | |
| Kupfer im Plasma | Zentrallabor LKH | |
| Kürbis / FEIA | Dermatologie | |
| Kürbissamen / FEIA | Dermatologie | |
| Lachs / FEIA | Dermatologie | |
| Lamm-/Hammelfleisch / FEIA | Dermatologie | |
| Languste / FEIA | Dermatologie | |
| Latex Hevea braziliensis / FEIA | Dermatologie | |
| Latexkomponente rHev b 11 / FEIA | Dermatologie | |
| Latexkomponente rHev b 5 / FEIA | Dermatologie | |
| Latexkomponente rHev b 6.01 / FEIA | Dermatologie | |
| Latexkomponente rHev b 6.02 / FEIA | Dermatologie | |
| Latexkomponente rHev b 8 / FEIA | Dermatologie | |
| Leinsamen / FEIA | Dermatologie | |
| Lepidoglyphus destr. / FEIA | Dermatologie | |