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Diagnosis information
Core diagnostic criteria, specifiers, differential considerations, and documentation support in one open, scan-friendly view.
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Core criterion A
Criteria met for major or mild NCD with insidious onset and gradual progression
Core criterion B
Probable: ≥2 core features (fluctuating cognition; recurrent visual hallucinations; spontaneous parkinsonism; REM sleep behaviour disorder); Possible: 1 core feature or indicative biomarker
Core criterion C
Core features not better explained by another condition (e.g. medications)
Core criterion D
Disturbance does not occur exclusively during delirium; not better explained by AD or another NCD
Consistent with [Lewy Body Neurocognitive Disorder] [specifier(s)]. Since a gradual onset with progressive cognitive decline, there have been impairments in attention; impairments in executive functioning; impairments in visuospatial abilities; impairments in learning and memory; impairments in social cognition; impairments in language, forming a pattern meeting the threshold for a neurocognitive disorder associated with Lewy body pathology. The presentation is further characterised by marked fluctuations in cognition; recurrent well-formed visual hallucinations; spontaneous parkinsonism (bradykinesia; rigidity; rest tremor; postural instability); REM sleep behaviour disorder, features characteristic of Lewy body disease. These symptoms have resulted in clinically significant impairment in social, occupational, or adaptive functioning, with the disturbance not occurring exclusively during delirium, and with Alzheimer's disease, frontotemporal degeneration, vascular disease, substance effects, and other medical conditions considered less likely explanations.
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