Dementia due to normal pressure hydrocephalus
Demência devida à hidrocefalia de pressão normal
CategoryDefinition
Dementia due to normal pressure hydrocephalus results from excess accumulation of cerebrospinal fluid in the brain as a result of idiopathic, non-obstructive causes but can also be secondary to haemorrhage, infection or inflammation. Progression is gradual but intervention (e.g., shunt) may result in improvement of symptoms, especially if administered earlier in the course of the condition. Typically, cognitive impairments include reduced processing speed and deficits in executive functioning and attention. These symptoms are also typically accompanied by gait abnormalities and urinary incontinence. Brain imaging to reveal ventricular volume and characterize brain displacement is often necessary to confirm the diagnosis.
Coding Note
Diagnostic Criteria
- All diagnostic requirements for Dementia are met.
- Dementia is presumed to be attributable to underlying Normal Pressure Hydrocephalus, as demonstrated by neuropsychological test data, neuroimaging data, medical tests, and/or clinical history.
- Dementia Due to Normal Pressure Hydrocephalus results from excess accumulation of cerebrospinal fluid in the brain as a result of idiopathic, non-obstructive causes but can also be secondary to haemorrhage, infection or inflammation.
- Progression is gradual but intervention (e.g., shunt) may result in improvement of symptoms, especially if administered earlier in the course of the condition.
- Typically, neurocognitive impairments include reduced processing speed and deficits in executive functioning and attention. These symptoms are also typically accompanied by gait abnormalities and urinary incontinence.
- Brain imaging to reveal ventricular volume and characterize brain displacement is often necessary to confirm the diagnosis.
Note: A diagnosis of 8D64.04 Normal-Pressure Hydrocephalus should also be assigned.