Charlson comorbidity The Charlson comorbidity index predicts the one-year mortality for a patient who may have a range of comorbid conditions, such as heart disease , AIDS, or cancer (a total of 22 conditions). Each condition is assigned a score of 1, 2, 3, or 6, depending on the risk of dying associated with each one. http://mchp-appserv.cpe.umanitoba.ca/concept/Charlson%20Comorbidities%20-%20Coding%20Algorithms%20for%20ICD-9-CM%20and%20ICD-10.pdf There are also online calculators that the provider can consider are available at the Medical Agorithms site. The updated Charlson Comorbidities Index is found at Medical Algorithms site: https://www.medicalalgorithms.com/charlson-comorbidity-index Disclaimer: This guidance is to be used for an easy reference; the ICD-9-CM and ICD-10-CM code books and the Official Guidelines for Coding and Reporting are the authoritative references for accurate and complete coding. This blog may contain references or l...