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Charlson Comorbidity Index (CCI)

Check each comorbidity present, enter age; comorbidity points plus age adjustment yield total CCI.

Calculator

Age adjustment: add 1 point for each full decade from age 50 upward (this tool uses floor((age - 40) / 10), which is 0 below 50, then +1 at 50–59, +2 at 60–69, etc.).

Age (years)

Check each comorbidity documented in the chart:

Myocardial infarction (history) (+1) Congestive heart failure (+1) Peripheral vascular disease (+1) Cerebrovascular disease (not stroke this admission) (+1) Dementia (+1) Chronic pulmonary disease (+1) Connective tissue disease (+1) Peptic ulcer disease (+1) Mild liver disease (+1) Diabetes without end-organ damage (+1) Diabetes with end-organ damage (+2) Hemiplegia (+2) Moderate or severe renal disease (+2) Solid tumor (non-metastatic) (+2) Moderate or severe liver disease (+3) Metastatic solid tumor (+6) AIDS / severe HIV (+6)

Charlson CCI

How it works

The Charlson index weights chronic conditions and adds age points to summarize comorbidity-adjusted mortality risk.

Limits

Versions differ (Charlson vs Charlson-Deyo vs Elixhauser); this screen uses common teaching weights—confirm for research or billing.

Educational tool only—not for diagnosis or treatment decisions.

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