Functions of the regulation of water, mineral and electrolytes in the body.
Inclusions: functions of water balance, balance of minerals such as calcium, zinc and iron, and balance of electrolytes such as sodium and potassium; impairments such as in water retention, dehydration, hypercalcaemia, hypocalcaemia, iron deficiency, hypernatraemia, hyponatraemia, hyperkalaemia and hypokalaemia
Exclusions: haematological system functions (b430); general metabolic functions (b540); endocrine gland functions (b555)
Lower livel:
b5458 Water, mineral and electrolyte balance functions, other specified
b5459 Water, mineral and electrolyte balance functions, unspecified