G31
Other degenerative diseases of nervous system, not elsewhere classified
Non-billableCategory
Coding Guidelines
Excludes2 (Not Included Here)
These conditions are not part of this code but may be reported additionally if documented
- G93.7 - Reye's syndrome (G93.7)
Use Additional Code
- code, if applicable, for codes G31.0-G31.83, G31.85-G31.9, to identify:
- dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
- dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
- dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
- dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
- dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
- mild neurocognitive disorder due to known physiological condition (F06.7-)
