Upper level: b429 Functions of the cardiovascular system, other specified and unspecified
Functions of maintaining the pressure of blood within the arteries.
Inclusions: functions of maintenance of blood pressure; increased and decreased blood pressure; impairments such as in hypotension, hypertension and postural hypotension
Exclusions: heart functions (b410); blood vessel functions (b415); exercise tolerance functions (b455)
Lower livel: