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G36 Other acute disseminated demyelination

ICD-10-CM category G36 sits in Chapter 6 (Diseases of the nervous system, G00-G99). It contains 4 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Billable codes in G36

CodeDescription
G36.0Neuromyelitis optica [Devic]
G36.1Acute and subacute hemorrhagic leukoencephalitis [Hurst]
G36.8Other specified acute disseminated demyelination
G36.9Acute disseminated demyelination, unspecified

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