Diagnostic codes for people not represented on a learning disability registera
| Diagnosis code | Number not on LD register |
|---|---|
| Prader–Willi syndrome | 5 |
| Fragile X | 31 |
| Autistic disorder | 555 |
↵a Results from search using three diagnostic codes: numbers identified who were not on the LD register in three cities in West Yorkshire (combined population 1.4 million). LD = learning disability.