This group comprises substances used for the treatment of cardiovascular conditions.
Drugs used for the treatment of hypertension are classified in C02 - Antihypertensives, C03 - Diuretics, C07 - Beta blocking agents, C08 - Calcium channel blockers, and C09 - Agents acting on the renin-angiotensin system. For the classification of combination products of antihypertensives from different ATC groups, the following ranking should be used, from higher to lower precedence: C09, C07, C08, and C03.

Beta blocking agents in combination with ACE inhibitors are classified in C09BX - ACE inhibitors, other combinations.
Beta blocking agents in combination with ARBs are classified in C09DX - Angiotensin II receptor blockers (ARBs), other combinations.
Beta blocking agents in combination with statins are classified in C10BX.