This article explores the diagnosis of Mild Cognitive Impairment (MCI) in general practice. It examines the subtypes of MCI and their specific diagnostic criteria for different neurodegenerative conditions such as Alzheimer's disease, Parkinson's disease, fronto-temporal dementia and cerebrovascular disorders. It highlights the preferential use of the Montreal Cognitive Assessment (MoCA) over the Mini-Mental State Examination (MMSE) for detecting MCI. A MoCA score below the norm (< 26 points) warrants a more thorough diagnostic work-up, including a full neuropsychological assessment and possibly brain imaging.