Dementia due to diseases classified elsewhere

Coding note

This category should never be used in primary tabulation. The codes are provided for use as supplementary or additional codes when it is desired to identify the presence of dementia in diseases classified elsewhere. When dementia is due to multiple aetiologies, code all that apply.

11 subordinate codes

• 6D85.0Dementia due to Parkinson disease
• 6D85.1Dementia due to Huntington disease
• 6D85.2Dementia due to exposure to heavy metals or other toxins
• 6D85.3Dementia due to human immunodeficiency virus
• 6D85.4Dementia due to multiple sclerosis
• 6D85.5Dementia due to prion disease
• 6D85.6Dementia due to normal pressure hydrocephalus
• 6D85.7Dementia due to injury to the head
• 6D85.8Dementia due to pellagra
• 6D85.9Dementia due to Down syndrome
• 4B4YOther specified diseases of the immune system

Also indexed as

Nearby in Dementia

• 6D80Dementia due to Alzheimer disease
• 6D81Dementia due to cerebrovascular disease
• 6D82Dementia due to Lewy body disease
• 6D83Frontotemporal dementia
• 6D84Dementia due to psychoactive substances including medications
• 6D86Behavioural or psychological disturbances in dementia
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified