ICD-11 classes
08 Diseases of the nervous system
Disorders of cerebrospinal fluid pressure or flow
8D66 — Syringomyelia or syringobulbia

ICD-11 8D66 — Syringomyelia or syringobulbia

In syringomyelia, there is fluid-filled tubular cavitation (syrinx formation) within the central spinal cord. The syrinx can elongate, enlarge and expand into the grey and white matter and, as it does so, it compresses the nervous tissue of the corticospinal and spinothalamic tracts and the anterior horn cells. This leads to the various neurological symptoms and signs. If the syrinx extends into the brainstem, syringobulbia results.

The diagnosis includes nothing.

Diagnosis with code 8D66 contains 5 clarifying diagnoses:

1. 8D66.0 — Idiopathic syringomyelia
2. 8D66.1 — Syringomyelia due to certain specified cause
3. 8D66.2 — Syringobulbia
4. 8D66.Y — Other specified syringomyelia or syringobulbia
5. 8D66.Z — Syringomyelia or syringobulbia, unspecified