| Label | Id | |
|---|---|---|
| aspergillosis | 0005657 | |
| astereognosia | 0000680 | |
| asternia | 0022509 | |
| asthenopia | 0000950 | |
| asthma | 0004979 | |
| astigmatism | 0011284 | |
| astroblastoma | 0016707 | |
| atelencephaly | 0035449 | |
| atelosteogenesis | 0000389 | |
| atherosclerosis | 0005311 | |
| athyreosis | 0019855 | |
| atransferrinemia | 0008846 | |
| auriculoosteodysplasia | 0007177 | |
| aurocephalosyndactyly | 0007178 | |
| autism | 0005260 |