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Charlson Comorbidity Index (CCI) Calculator

Sum of weighted comorbidities + age decade points; predicts 10-year mortality.

Compute the Charlson Comorbidity Index — a summed weighted-comorbidity score that predicts 10-year mortality risk in patients with chronic disease. Inputs are grouped by point-weighting category (1, 2, 3, 6 points each) plus age-decade points (1 per decade ≥ 50). Higher scores → worse prognosis; CCI ≥ 5 indicates very high mortality risk.

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

CCI = Σ comorbidity weights + age-decade points.

In depth

Compute the Charlson Comorbidity Index — a summed weighted-comorbidity score that predicts 10-year mortality risk in patients with chronic disease. Inputs are grouped by point-weighting category (1, 2, 3, 6 points each) plus age-decade points (1 per decade ≥ 50). Higher scores → worse prognosis; CCI ≥ 5 indicates very high mortality risk.