ICD-10 Code G95.0 – Syringomyelia and syringobulbia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G95.0 – Syringomyelia and syringobulbia
What it is
Use this code for a fluid-filled cavity, or syrinx, within the spinal cord, and for syringobulbia when the cavity extends into the brainstem. It represents a structural neurologic disorder, not a symptom-only complaint.
Clinical signs
Typical findings include segmental sensory loss, especially reduced pain and temperature sensation, weakness, and muscle atrophy. Clinical features vary; refer to documentation for the exact neurologic level and whether the brainstem is involved.
When to use this code
Assign G95.0 when the provider documents syringomyelia or syringobulbia as the diagnosis. Use it for confirmed imaging or specialist assessment that identifies a syrinx, even if the note also describes chronic neurologic deficits. If documentation is unclear, check documentation before coding.
Do not use for
Do not use this code for nonspecific back pain, paresthesia, or weakness without documented syringomyelia or syringobulbia. Do not substitute it for other spinal cord disorders unless the record specifically supports them.
Coding tip
Code the condition only when the record names the syrinx diagnosis; if the level or cause is documented separately, capture that information as directed.