The ICD 11 Code 11 is a WHO Classified code for Diseases of the circulatory system
Definition: This refers to diseases of the organ system that passes nutrients (such as amino acids, electrolytes and lymph), gases, hormones, blood cells, etc. to and from cells in the body to help fight diseases, stabilize body temperature and pH, and to maintain homeostasis.
Exclusion:
Certain infectious or parasitic diseases
Certain conditions originating in the perinatal period
Congenital malformations, deformations and chromosomal abnormalities
Complications of pregnancy, childbirth and the puerperium
Injury, poisoning or certain other consequences of external causes
Endocrine, nutritional or metabolic diseases