6D85.Y Dementia due to other specified diseases classified elsewhere

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

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.

postcoordination

synonyms

• Dementia due to other specified diseases classified elsewhere
• Dementia due to certain specified central nervous system degenerative diseases
• Dementia due to corticobasal degeneration
• Dementia due to progressive supranuclear palsy
• Dementia due to neurofilament inclusion body disease
• Dementia due to progressive subcortical gliosis
• Dementia due to multiple system atrophy
• Dementia due to spinocerebellar ataxia
• Dementia due to neurodegeneration with brain iron accumulation
• Dementia due to leukodystrophy
• Dementia due to Parkinsonism-dementia complex of Guam
• Dementia due to certain specified infectious diseases
• Dementia due to neurosyphilis
• syphilitic dementia paralytica
• Dementia due to herpes encephalitis
• Dementia due to trypanosomiasis
• Dementia due to neurocysticercosis
• Dementia due to Lyme disease
• Dementia due to Whipple disease
• Dementia due to progressive multifocal leukoencephalopathy
• Certain specified primary degenerative dementias
• Neurofibrillary tangle dementia
• Familial multiple system tauopathy
• Argyrophilic grain disease
• Dementia due to certain specified disorders of the central nervous system
• Dementia due to acute demyelinating encephalomyelitis
• Dementia due to subacute sclerosing panencephalitis
• Dementia due to Hashimoto encephalopathy
• Dementia due to paraneoplastic encephalitis
• Dementia due to autoimmune encephalitis
• Dementia due to primary central nervous system neoplasm
• Dementia due to metastatic brain tumour
• Dementia due to epilepsy
• Dementia due to metabolic disorders involving the brain
• Dementia due to chronic subdural haematoma
• Dementia due to obstructive hydrocephalus
• Dementia due to nutritional deficiency
• Dementia due to vitamin B12 deficiency
• Dementia due to vitamin E deficiency
• Dementia due to iron deficiency
• Dementia due to other nutritional deficiency
• Dementia due to metabolic abnormalities
• Dementia due to hypercalcaemia
• Dementia due to acquired hypothyroidism
• Dementia due to Wilson disease
• Dementia due to dialysis
• Dementia due to hepatic failure
• Dementia due to renal failure
• Dementia due to chromosomal anomalies
• Dementia due to Fragile X Syndrome
• Dementia due to rheumatological diseases
• Dementia due to polyarteritis nodosa
• Dementia due to systemic lupus erythematosus
• Dementia due to Behcet disease
• Dementia due to certain specified cause

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