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Intermediate

BIMS Calculator — Brief Interview for Mental Status

Score the BIMS cognitive screening interview used in nursing home assessments: enter Part A (word repetition), Part B (temporal orientation) and Part C (recall) to get the total 0–15 score and its clinical interpretation.
1 point per word the resident repeats immediately after the interviewer says them
1 = correct day named
2 = correct year, 1 = within 5 years, 0 = missing or off by more than 5
1 = correct month named
2 pts per word recalled without cue, 1 pt with cue, 0 pts if not recalled (max 3 words × 2 = 6)
BIMS Total Score
13

Cognitively intact (13–15)

Part A — Word repetition (max 3)
3
Part B — Temporal orientation (max 4)
4
Part C — Word recall (max 6)
6
Cognitive status
Cognitively intact (13–15)
BIMS score interpretation: Cognitively intact (13–15)
Step by step
  1. 1

    Part A — Word repetition

    3
    1 point per word correctly repeated immediately (max 3).
  2. 2

    Part B — Temporal orientation (day + year + month)

    1 + 2 + 1 = 4
  3. 3

    Part C — Delayed word recall

    6
    2 pts per word without cue, 1 pt with cue (max 6).
  4. 4

    BIMS total

    3 + 4 + 6 = 13
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BIMS total = Part A (word repetition, 0–3) + Part B (day/year/month orientation, 0–4) + Part C (word recall, 0–6) = max 15. Score 13–15: intact; 8–12: moderate impairment; 0–7: severe impairment. Used in CMS MDS 3.0 nursing-home assessments.

Formula
BIMS total = Part A (0–3) + Part B (0–4) + Part C (0–6) • max = 15
How this is calculated

The Brief Interview for Mental Status (BIMS) is a standardised cognitive screening tool embedded in the Centers for Medicare & Medicaid Services (CMS) Minimum Data Set 3.0 (MDS 3.0), the mandatory federal assessment instrument for long-term care facilities in the United States. It is administered verbally by a trained interviewer and takes approximately three minutes, making it practical in the nursing home setting.

The BIMS has three parts. Part A (maximum 3 points) tests immediate repetition: the interviewer says three words (sock, blue, bed) and the resident repeats them immediately. Part B (maximum 4 points) tests temporal orientation: the resident is asked the current day of the week (0–1 point), year (0–2 points; full credit for the correct year, 1 point within 5 years), and month (0–1 point). Part C (maximum 6 points) tests delayed recall of the three words from Part A: 2 points if recalled without cue, 1 point if recalled after a categorical cue, 0 points if not recalled; scored for each of the three words (maximum 6).

The total score (0–15) is interpreted as: 13–15 cognitively intact, 8–12 moderately impaired, 0–7 severely impaired. These cut-points align with CMS guidance. The BIMS is a screening instrument only — it does not diagnose dementia or any specific condition, and a positive screen must be followed up by a qualified clinician with more comprehensive evaluation such as the Montreal Cognitive Assessment (MoCA) or Mini-Mental State Examination (MMSE).

Mistoqsijiet frekwenti

The BIMS is part of the MDS 3.0 quarterly and annual assessment required by CMS for all Medicare- and Medicaid-certified skilled nursing facilities in the US. It identifies residents who may have cognitive impairment so that care plans can be tailored accordingly. Facilities that skip or inaccurately score BIMS risk CMS compliance issues.

The CMS-standardised words are "sock", "blue", and "bed". The interviewer says all three, then asks for immediate repetition (Part A), conducts the orientation questions (Part B), and then asks for recall of the three words without prompting and then with category cues (Part C).

No. The MMSE (Mini-Mental State Examination) and MoCA (Montreal Cognitive Assessment) are longer and more comprehensive — they take 10–30 minutes and assess additional cognitive domains. The BIMS is a brief three-minute screen for the nursing-home setting. A BIMS score of 12 or below warrants a more thorough assessment.

Magħruf ukoll bħala

brief interview for mental status
bims score calculator
mds 3.0 cognitive assessment
nursing home cognitive screening
bims cognitive impairment score
cms cognitive screening tool

APA

TG we-Calculate Editorial Team. (2026). BIMS Calculator — Brief Interview for Mental Status [Online calculator]. TG we-Calculate. https://we-calculate.com/mt/calculator/bims-calculator

Chicago

TG we-Calculate Editorial Team. "BIMS Calculator — Brief Interview for Mental Status." TG we-Calculate. 2026. https://we-calculate.com/mt/calculator/bims-calculator.

IEEE

TG we-Calculate Editorial Team, "BIMS Calculator — Brief Interview for Mental Status," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/mt/calculator/bims-calculator

BibTeX

@misc{wecalculate_bims_calculator, title = {BIMS Calculator — Brief Interview for Mental Status}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/mt/calculator/bims-calculator}}, year = {2026}, note = {TG we-Calculate} }

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