G36.8Other specified acute disseminated demyelination

G36.8 is the ICD-10-CM diagnosis code for other specified acute disseminated demyelination. It belongs to category G36 (other acute disseminated demyelination), block G35-G37 (demyelinating diseases of the central nervous system) and chapter 6 (diseases of the nervous system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within G36, choose G36.8 (Other specified acute disseminated demyelination) only when documentation doesn't support a more specific option: Neuromyelitis optica [Devic] (G36.0), acute and subacute hemorrhagic leukoencephalitis [Hurst] (G36.1) and acute disseminated demyelination, unspecified (G36.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 058 (Multiple Sclerosis and Cerebellar Ataxia with MCC, relative weight 1.8438), DRG 059 (Multiple Sclerosis and Cerebellar Ataxia with CC, relative weight 1.2002) and DRG 060 (Multiple Sclerosis and Cerebellar Ataxia without CC/MCC, relative weight 0.9247), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 341.8 (other demyelinating diseases of central nervous system).