Charlson Comorbidity Index (CCI) Calculator

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Each decade above 50 adds one point to reflect age-related mortality risk.
History of definite or probable MI (ECG changes and/or enzyme changes).
Exertional or paroxysmal nocturnal dyspnoea, or heart failure responded to digitalis or diuretics.
Includes claudication, bypass or amputation for ischaemia, or aortic aneurysm (greater than 6 cm).
History of stroke with minor or no residua, or transient ischaemic attacks.
Chronic cognitive deficit of any cause, including Alzheimer's disease.
COPD, emphysema, asthma, or any chronic lung disease requiring treatment.
SLE, polymyositis, mixed connective tissue disease, polymyalgia rheumatica, or rheumatoid arthritis.
Any history of ulcer disease requiring treatment (excluding GI bleeding alone).
Chronic hepatitis, cirrhosis without portal hypertension, or fatty liver.
Controlled diabetes without end-organ damage. Use the 2-point option if end-organ damage is present.
Complete or incomplete motor paralysis from any cause.
Creatinine greater than 3 mg/dL, dialysis, or transplant.
Any solid tumor treated within the past 5 years, without documented metastases. Use the 6-point option if metastatic.
Acute or chronic myelogenous or lymphocytic leukemia.
Hodgkin's or non-Hodgkin's lymphoma, or multiple myeloma.
Portal hypertension, varices, or hepatic encephalopathy. Scores 3 points (overrides mild liver disease).
Diabetic retinopathy, neuropathy, nephropathy, or brittle diabetes. Scores 2 points (overrides uncomplicated diabetes).
Documented metastatic solid tumor.
Diagnosed AIDS with opportunistic infection or CD4 less than 200. HIV-positive without AIDS does not qualify.
CCI Score (age-adjusted)No comorbidities
0

Sum of all condition points plus the age adjustment

Comorbidity score (conditions only)0
Age adjustment points0
Estimated 10-year survival98.3%
0 pts
No comorbidities<1Low burden1-3Moderate burden3-5High burden5-7Very high burden7+

CCI score is 0 - no comorbidities recorded.

  • A score of 0 indicates no recorded comorbidities and no age penalty, consistent with the healthiest CCI stratum.
  • The estimated 10-year survival is approximately 98.3%, calculated using the validated formula 0.983^(e^(0 x 0.9)).
  • The CCI was developed as a research instrument for cohort studies. Clinical decisions must incorporate the full patient picture and should not rely on this score alone.

Next stepContinue preventive care and regular monitoring of chronic conditions to keep the comorbidity burden low.

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