Y42: Hormones and their synthetic substitutes and antagonists, not elsewhere classified

Y42.3: Insulin and oral hypoglycaemic [antidiabetic] drugs

The condition referred to by Y42.3 in the ICD-10 WHO 2016 classification is a reaction or adverse effect to insulin and oral hypoglycaemic (antidiabetic) drugs. These medicines are commonly used to control blood sugar levels in people with diabetes. The drugs work by helping the body's cells use glucose more efficiently or by reducing the amount of glucose produced by the liver. However, in some cases, they can lead to an oversupply of insulin, causing an individual's blood sugar to drop too low, a state known as hypoglycaemia. Symptoms of hypoglycaemia can include light-headedness, confusion, sweating, fast heartbeat, hunger, irritability, and even loss of consciousness in severe cases.