LA07.3 Primary syringomyelia or hydromyelia

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

A condition caused by failure of the spinal canal to correctly develop during the antenatal period. This condition is characterised by a cavity within the spinal cord in which cerebrospinal fluid can accumulate. Confirmation is through observation of a fluid filled cavity within the spinal cord by imaging.

exclusions

• Idiopathic syringomyelia  (8D66.0)
• Syringomyelia  (8D66.Z)
• Syringomyelia due to certain specified cause  (8D66.1)

synonyms

• Primary syringomyelia or hydromyelia
• Congenital syringomyelia or hydromyelia
• Congenital hydromyelia
• Hydromyelia
• Hydrorachis
• Primary syringomyelia

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