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

2012

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

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.

Primary validation papers

1 identified diagnostic-accuracy paper

Other forms of validation are described in the evidence section. What is counted?

Large-scale clinical implementation

Not yet reviewed.

A focused implementation review has not yet been completed for this profile.

Training and instructions

Public training resources have not yet been confirmed in this review. Check the linked developer or original source for instructions.

Start here

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.

    Open PubMed ↗
One DTA study identifiedVersion or adaptation
Classification

Classification

Episodic assessment

A tool may belong to more than one category. Select a linked category to see other relevant profiles.

Evidence

Diagnostic-accuracy evidenceOne 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 evaluations
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
Download RIS ↗ Download BibTeX ↗

Primary validation studies

Distinct primary publications from the current diagnostic-accuracy audit. Reviews and repeated evaluations within one paper are not counted again. Overlapping cohorts have not all been reconciled. Read the counting rules and limitations.

Open 1 identified paper
  1. Thomas C, Kreisel SH, Oster P, Driessen M, Arolt V, Inouye SK (2012). 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.

    Reference category: other comparator or secondary accuracy evidence.

Copyright and reuse
Information checked
2026-07-19

Instrument-specific terms apply. See the access and copyright policy or send a correction.

Base clinical review: 2026-07-29. Instrument description source check: 2026-09-05. Scope and limitations.