Charlson Comorbidity Index Calculator

What Is the Charlson Comorbidity Index?

The Charlson Comorbidity Index (CCI) summarizes burden of chronic disease to predict long-term mortality and hospital outcomes. It is used in research, prognosis counseling, and risk adjustment. Related tools: Heart Disease Risk Calculator, CHA₂DS₂-VASc Calculator, and Braden Score Calculator.

Scoring Components

Each listed comorbidity adds weighted points. Age contributes additional points in decade bands above 50. Liver disease, diabetes, and malignancy use tiered weights. AIDS and metastatic cancer carry the highest individual weights.

• 1 point: myocardial infarction, CHF, PVD, cerebrovascular disease, dementia, COPD, rheumatologic disease, peptic ulcer
• 2 points: hemiplegia, renal disease, leukemia, lymphoma
• 6 points: AIDS, metastatic solid tumor

Interpretation

Higher scores indicate greater comorbidity burden and correlate with reduced survival. Many studies stratify patients into low, moderate, and high burden groups. The index supports comparison across cohorts but does not replace individualized clinical assessment.

Clinical Use

CCI appears in oncology staging discussions, surgical risk models, and epidemiologic studies. Document diagnoses accurately because undercoding lowers the score and may underestimate risk.