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Columbia SSRS Suicide Risk Stratification Calculator

Ideation and behaviour severity from C-SSRS.

Simplified Columbia Suicide Severity Rating Scale scoring from passive ideation to active ideation with plan and intent, and recent behaviours. Guides urgent psychiatric action.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Ideation 0–5; any behaviour → High risk → emergency referral.

In depth

Simplified Columbia Suicide Severity Rating Scale scoring from passive ideation to active ideation with plan and intent, and recent behaviours. Guides urgent psychiatric action.