| Sequencing of selected exons | Postnatal Diagnosis Routine | London Institute of Neurology | 40 | £320 (HSS) |
| Sequencing of selected exons | Postnatal Diagnosis Urgent | London Institute of Neurology | 10 | £420 (HSS) |
| Testing for known mutations in family members Note: inc MCC | Prenatal Diagnosis | London Institute of Neurology | 3 | £400 (HSS) |
| Testing for known mutations in family members | Postnatal Diagnosis Routine | London Institute of Neurology | 20 | £200 (HSS) |
| Testing for known mutations in family members | Postnatal Diagnosis Urgent | London Institute of Neurology | 10 | £300 (HSS) |
