ICD-11 definition : A reduction of total body mass, due to loss of fluid, body fat or adipose tissue,
or lean (muscle) mass that is sufficient in quantity or rate to create risk to the
individual's health.;
ICD-11 synonym : weight loss NOS; abnormal decrease in weight; unintended weight loss; abnormal weight loss;
A reduction of total body mass, due to loss of fluid, body fat or adipose tissue,
or lean (muscle) mass that is sufficient in quantity or rate to create risk to the
individual's health.