G31.80
BillableLeukodystrophy, unspecified
HCC Category Mapping
V28HCC 200 — Cerebellar Ataxia and Other Degenerative Diseases of Nervous System
0.262What This Code Means
A group of inherited disorders affecting the white matter of the brain, causing progressive neurological deterioration without a specific identified type.
Coding Tips
- •Leukodystrophies are rare genetic disorders; query for specific type if documentation is vague
- •Consider genetic testing documentation and family history when coding these conditions
Clinical Significance
Leukodystrophy, unspecified, captures a group of rare inherited disorders affecting the white matter of the brain. These conditions cause progressive neurological deterioration and require intensive multidisciplinary care. Despite being unspecified, the diagnosis reflects a serious genetic neurological condition with significant care needs and resource utilization.
Documentation Requirements
- ✓Documentation confirming leukodystrophy diagnosis via neuroimaging (MRI showing white matter abnormalities)
- ✓Genetic testing results if available, even if specific type is not identified
- ✓Neurological examination findings documenting motor, cognitive, or developmental deficits
- ✓Documentation that specific leukodystrophy subtypes could not be determined
- ✓Family history of neurological disorders if applicable
- ✓Current treatment plan and specialty referrals
Commonly Confused Codes
G31.86 — Alexander disease; a specific type of leukodystrophy that has its own codeG23.3 — Hypomyelination with atrophy of basal ganglia and cerebellum; specific pattern of white matter diseaseG35 — Multiple sclerosis; acquired demyelinating disease, not inherited leukodystrophyG37.0 — Diffuse sclerosis of central nervous system; different pattern of white matter involvementE75.25 — Metachromatic leukodystrophy; a specific leukodystrophy with its own code