I-CAM: ICD-10-adapted Confusion Assessment Method

2012

I-CAM is a study-specific CAM-family diagnostic algorithm evaluated in acute geriatric inpatients.

Classification

Episodic assessment

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Tool and original sources

This record describes a method rather than a downloadable bedside form. The main source is linked below.

Original paper

Original paperThomas C, Kreisel SH, Oster P, Driessen M, Arolt V, Inouye SK. Diagnosing delirium in older hospitalized adults with dementia: adapting the confusion assessment method to international classification of diseases, tenth revision, diagnostic criteria. Journal of the American Geriatrics Society. 2012;60(8):1471-7. doi: 10.1111/j.1532-5415.2012.04066.x. PMID: 22881707.
This is the original published source for I-CAM. It reported sensitivity of 54.6% and specificity of 97.1% against an independent ICD-10 clinical assessment.
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One DTA study identifiedVersion or adaptation

At a glance

Purpose: Episodic assessment
Population: Adult
Setting: General / acute hospital
Time: variable
Score or threshold: Study-specific CAM-derived classification; see the source.

Format: A study-specific CAM-derived diagnostic algorithm evaluated in acute geriatric inpatients. The individual items, weights and operational classification rule are not reproduced here.

Evidence

Evidence maturityOne DTA study identified

Reported sensitivity and specificity

Headline metric source

Original/source study · 2012 — pmid:22881707

Denominator: Reported source unit: 79 (analysis unit not fully reconciled)
Reference standard: Expert-panel ICD-10 delirium consensus

54.6%

Sensitivity

97.1%

Specificity

Earliest DTA evaluation identified in the current audit; see the linked source and methodological caveats.

More evidence and citation details

Full name: ICD-10-adapted Confusion Assessment Method
Also known as: I-CAM, ICD-10 adapted CAM, ICD-10-adapted CAM
Related profiles: CAM
Evidence summary: single
Diagnostic-accuracy studies: 1
Reference standard: Expert-panel ICD-10 delirium consensus
Citation: Thomas C, Kreisel SH, Oster P, Driessen M, Arolt V, Inouye SK Diagnosing delirium in older hospitalized adults with dementia: adapting the confusion assessment method to international classification of diseases, tenth revision, diagnostic criteria Journal of the American Geriatrics Society. 2012;60(8):1471-7. PMID 22881707

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Information checked: 2026-07-19

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Sources checked 2026-07-29. How profiles are prepared.