Cranial cavity

Child codes

• XA1FQ8 – Subdural space
• XA1XM6 – Subarachnoid space

Foundation children elsewhere

• XA26E8 – Cerebral ventricle

Sibling codes

• XA1GB6 – Perineural space
• XA1XJ5 – Thoracic cavity
• XA2N82 – Ventral body cavity
• XA8YW7 – Vertebral cavity
• XA9QA7 – Dorsal body cavity

Foundation entity

Cranial cavity – http://id.who.int/icd/entity/1074640675