G36.8
BillableOther specified acute disseminated demyelination
HCC Category Mapping
V28HCC 198 — Multiple Sclerosis
0.000V24HCC 77 — Multiple Sclerosis
0.476ESRDHCC 77 — Multiple Sclerosis
0.000What This Code Means
Other rare forms of sudden-onset inflammation affecting multiple areas of the brain and spinal cord, causing demyelination and neurological symptoms.
Coding Tips
Clinical Significance
Other specified acute disseminated demyelination captures rare forms of sudden-onset central nervous system demyelination that do not fit other G36 categories. These conditions cause acute neurological dysfunction and require urgent diagnostic evaluation and treatment. Accurate coding ensures proper recognition of these complex neurological emergencies for risk adjustment.
Documentation Requirements
- ✓Documentation specifying the type of acute disseminated demyelination
- ✓Neuroimaging (MRI) showing acute demyelinating lesions in multiple CNS areas
- ✓Documentation of acute onset timeline (days to weeks)
- ✓Evidence that NMO (G36.0) and hemorrhagic leukoencephalitis (G36.1) have been excluded
- ✓Treatment documentation (corticosteroids, plasma exchange, or IVIG)
- ✓Follow-up plan to determine if condition is monophasic or relapsing
Commonly Confused Codes
G36.0 — Neuromyelitis optica; specific disease with AQP4 antibodiesG36.1 — Acute hemorrhagic leukoencephalitis; has hemorrhagic componentG36.9 — Acute disseminated demyelination, unspecified; use only when the specific type cannot be determinedG35 — Multiple sclerosis; chronic relapsing condition, not acute disseminatedG04.00 — Acute disseminated encephalitis and encephalomyelitis; may overlap clinically
Code Hierarchy
└G36Other acute disseminated demyelination└G36.8Other specified acute disseminated demyelination
└G36.8Other specified acute disseminated demyelination