ty be present in a patient with different degrees of severity, then the milder form will be assigned a value of 0 when calculating the score.
By doing this, a type of comorbidity is not counted more than once in each patient.
If <code>assign0 = TRUE</code>, the comorbidities that are affected by this argument are:</p><ul><li><p>"Mild liver disease" (<code>mld</code>) and "Moderate/severe liver disease" (<code>msld</code>) for the Charlson score;</p></li>
<li><p>"Diabetes" (<code>diab</code>) and "Diabetes w