| Anti-MAG/HNK-1 IIFT | 04049016161196 | Class B | |
| Anti-Mayaro Virus ELISA (IgG) | 04049016136583 | Unknown class | |
| Anti-Mayaro Virus ELISA (IgM) | 04049016136590 | Unknown class | |
| Anti-Measles Virus ELISA (IgG) | 04049016027973 | Unknown class | |
| Anti-Measles Virus ELISA (IgM) | 04049016027980 | Unknown class | |
| Anti-Measles Virus NP ELISA (IgM) | 04049016092520 | Unknown class | |
| Anti-MERS-CoV ELISA (IgG) | 04049016113959 | Unknown class | |
| Anti-MOG IIFT | 04049016162124 | Class B | |
| Anti-MOG IIFT | 04049016162131 | Class B | |
| Anti-MPO ELISA (IgG) | 04049016026761 | Unknown class | |
| Anti-Mumps Virus AT ELISA (IgG) | 04049016083283 | Unknown class | |
| Anti-Mumps Virus ELISA (G5) (IgM) | 04049016103646 | Unknown class | |
| Anti-Mumps Virus ELISA (IgG) | 04049016028017 | Unknown class | |
| Anti-Mumps Virus ELISA (IgM) | 04049016028024 | Unknown class | |
| Anti-Muscle-Specific Kinase (MuSK) IIFT | 04049016147848 | Unknown class | |
| Anti-Muscle-Specific Kinase (MuSK) IIFT | 04049016147855 | Unknown class | |
| Anti-MuSK IIFT | 04049016160878 | Class B | |
| Anti-MuSK IIFT | 04049016160885 | Class B | |
| Anti-Mycoplasma pneumoniae ELISA (IgA) | 04049016027645 | Unknown class | |
| Anti-Mycoplasma pneumoniae ELISA (IgG) | 04049016027652 | Unknown class | |
| Anti-Mycoplasma pneumoniae ELISA (IgM) | 04049016027669 | Unknown class | |
| Anti-Myelin-Oligodendrocyte Glycoprotein (MOG) IIFT | 04049016128618 | Unknown class | |
| Anti-Myelin-Oligodendrocyte Glycoprotein (MOG) IIFT | 04049016128625 | Unknown class | |
| Anti-Myelin-Oligodendrocyte Glycoprotein (MOG) IIFT EUROPattern | 04049016135982 | Unknown class | |
| Anti-Myelin-Oligodendrocyte Glycoprotein (MOG) IIFT EUROPattern | 04049016135999 | Unknown class | |
UDI Compass