ICD-10 Code G36 – Other acute disseminated demyelination (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G36 – Other acute disseminated demyelination
What it is
G36 identifies other acute disseminated demyelination, a group of acute inflammatory disorders that damage myelin in the central nervous system. Use it when the record supports a demyelinating process but does not specify a more exact diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly, patients may have acute neurologic deficits such as weakness, sensory changes, visual disturbance, or coordination problems, with findings consistent with central nervous system demyelination.
When to use this code
Use G36 when the clinician documents acute disseminated demyelination or another acute demyelinating disorder that is not better described by a more specific ICD-10-CM code. It is appropriate when the chart supports an acute demyelinating event and the exact subtype is unclear. Check documentation if the diagnosis is only suspected.
Do not use for
Do not use this code for chronic demyelinating diseases, such as multiple sclerosis, unless the record specifically documents a separate acute disseminated process. Avoid using it when the diagnosis is unspecified or when a more specific code is available.
Coding tip
Confirm the provider’s exact neurologic diagnosis and code the most specific demyelinating disorder documented.