BIMS Calculator – Brief Interview for Mental Status

Written by Great Medico

Updated September 24, 2026 •2 min read

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A functional score can make change easier to track, but it is not a verdict on independence, cognition, or prognosis. BIMS Calculator – Brief Interview for Mental Status calculates the scale while keeping that distinction clear.

What this calculator does

BIMS Calculator – Brief Interview for Mental Status uses Three-word repetition (first attempt), Year orientation, Month orientation, Day of week, Recall word 1, Recall word 2, and Recall word 3 to produce the intact cognitive response used by this calculator. It only uses the fields shown in this calculator; it does not silently add tests, diagnoses, symptoms, or clinical variables that are absent from the interface. CMS-style Brief Interview for Mental Status scoring: repetition, temporal orientation, and three-word recall; total 0–15. It is a cognitive screening measure, not a dementia diagnosis.

How to use it

Enter or select Three-word repetition (first attempt), Year orientation, Month orientation, Day of week, Recall word 1, and the remaining displayed fields. Score what is actually observed for the person under the scale’s intended conditions rather than the best performance you think is possible. If an input is unknown, it is better to leave the calculation unresolved than to invent a value.

How the calculation works

BIMS adds three-word repetition (0–3), temporal orientation (0–6), and three-word recall (0–6) to produce a 0–15 total.

Example

Using the calculator’s prefilled demonstration values, the primary output is 15 /15, labeled “Intact cognitive response”; Repetition is 3/3 and Temporal orientation is 6/6. That sample is useful for checking the calculation path, but real interpretation should use verified measurements from the same clinical or study context.

How to interpret the result

Read intact cognitive response as a summary of the selected functional, cognitive, risk, or comorbidity items. It is most useful for communication and tracking when the same version and scoring conditions are used consistently over time.

Limitations and notes

Performance scales can vary with acute illness, fatigue, assistance, environment, language, hearing/vision, cognition, and who performs the assessment. Local cutoffs and care plans may differ, so repeated standardized assessment is often more informative than one isolated score.