| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| OUTPAT | OUTPAT_ICD10(Q070) | Arnold-Chiari syndrome | 209 | |
| INPAT | INPAT_ICD10(Q070) | Arnold-Chiari syndrome | 104 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q070) | Arnold-Chiari syndrome. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 61 | |
| OUTPAT | OUTPAT_ICD10(Q048) | Other specified congenital malformations of brain | 52 | |
| INPAT | INPAT_ICD10(Q048) | Other specified congenital malformations of brain | 28 | |
| OUTPAT | OUTPAT_ICD10(Q046) | Congenital cysts in the brain | 27 | |
| INPAT | INPAT_ICD9(7423A) | Congenital hydrocephalus | 23 | |
| INPAT | INPAT_ICD8(74200) | Congenital hydrocephalus, Communicans | 21 | |
| OUTPAT | OUTPAT_ICD10(Q052) | Lumbar spina bifida with hydrocephalus | 21 | |
| OUTPAT | OUTPAT_ICD10(Q057) | Lumbar spina bifida without hydrocephalus | 21 | |
| OUTPAT | OUTPAT_ICD10(Q078) | Other specified congenital malformations of the nervous system | 19 | |
| INPAT | INPAT_ICD10(Q052) | Lumbar spina bifida with hydrocephalus | 18 | |
| OUTPAT | OUTPAT_ICD10(Q030) | Malformations of aqueduct of Sylvius | 18 | |
| OUTPAT | OUTPAT_ICD10(Q039) | Congenital hydrocephalus, unspecified | 18 | |
| INPAT | INPAT_ICD8(74209) | Congenital hydrocephalus, Unspecified | 16 | |
| OUTPAT | OUTPAT_ICD10(Q02) | Microcephaly | 15 | |
| OUTPAT | OUTPAT_ICD10(Q068) | Other specified congenital malformations of spinal cord | 15 | |
| INPAT | INPAT_ICD10(Q039) | Congenital hydrocephalus, unspecified | 14 | |
| OUTPAT | OUTPAT_ICD10(Q049) | Congenital malformation of brain, unspecified | 13 | |
| OUTPAT | OUTPAT_ICD10(Q059) | Spina bifida, unspecified | 13 | |
| OUTPAT | OUTPAT_ICD10(Q0400) | Agenesis of corpus callosum | 12 | |
| OUTPAT | OUTPAT_ICD10(Q043) | Other malformations in the form of reduced brain tissue | 12 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q048) | Other specified congenital malformations of brain. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 12 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q052) | Lumbar spina bifida with hydrocephalus. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 12 | |
| INPAT | INPAT_ICD10(Q030) | Malformations of aqueduct of Sylvius | 11 | |
| INPAT | INPAT_ICD10(Q057) | Lumbar spina bifida without hydrocephalus | 11 | |
| OUTPAT | OUTPAT_ICD10(Q079) | Congenital malformation of nervous system, unspecified | 11 | |
| INPAT | INPAT_ICD10(Q046) | Congenital cysts in the brain | 9 | |
| INPAT | INPAT_ICD8(74201) | Congenital hydrocephalus, Non communicans | 9 | |
| OUTPAT | OUTPAT_ICD10(Q050) | Cervical spina bifida with hydrocephalus | 9 | |
| INPAT | INPAT_ICD8(74210) | Name not found | 8 | |
| OUTPAT | OUTPAT_ICD10(Q0408) | Congenital malformations of corpus callosum | 8 | |
| OUTPAT | OUTPAT_ICD10(Q058) | Sacral spina bifida without hydrocephalus | 8 | |
| OUTPAT | OUTPAT_ICD10(Q069) | Congenital malformation of spinal cord, unspecified | 8 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q057) | Lumbar spina bifida without hydrocephalus. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 8 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q059) | Spina bifida, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 8 | |
| INPAT | INPAT_ICD10(Q0400) | Agenesis of corpus callosum | 7 | |
| INPAT | INPAT_ICD10(Q043) | Other malformations in the form of reduced brain tissue | 7 | |
| INPAT | INPAT_ICD10(Q068) | Other specified congenital malformations of spinal cord | 7 | |
| OUTPAT | OUTPAT_ICD10(Q018) | Encephalocele of other sites | 7 | |
| INPAT | INPAT_ICD10(Q02) | Microcephaly | 6 | |
| INPAT | INPAT_ICD10(Q058) | Sacral spina bifida without hydrocephalus | 6 | |
| INPAT | INPAT_ICD10(Q069) | Congenital malformation of spinal cord, unspecified | 6 | |
| INPAT | INPAT_ICD10(Q078) | Other specified congenital malformations of the nervous system | 6 | |
| OUTPAT | OUTPAT_ICD10(Q044) | Septo-optic dysplasia | 6 | |
| INPAT | INPAT_ICD10(Q031) | Atresia of foramina of Magendie and Luschka | 5 | |
| INPAT | INPAT_ICD10(Q049) | Congenital malformation of brain, unspecified | 5 | |
| INPAT | INPAT_ICD10(Q059) | Spina bifida, unspecified | 5 | |
| OUTPAT | OUTPAT_ICD10(Q000) | Anencephaly | 5 | |
| OUTPAT | OUTPAT_ICD10(Q011) | Nasofrontal encephalocele | 5 | |
| OUTPAT | OUTPAT_ICD10(Q031) | Atresia of foramina of Magendie and Luschka | 5 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q043) | Other malformations in the form of reduced brain tissue. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 5 |