Table 2.

ACCF/AHA HF Stage, NYHA Functional Class, and INTERMACS Profiles^85,88,89

ACCF/AHA Stages	NYHA Class	INTERMACS Profile
A – At risk for HF, but no structural heart disease
B – Structural heart disease, but no symptoms or limitations	I – Asymptomatic, no physical limitations
C – Structural heart disease with current or prior heart failure symptoms	II – Symptomatic with moderate exertion, slight limitation in activity
	III – Symptomatic with minimal exertion, marked limitation in activity	7- Advanced NYHA III
		6- Exertion limited
D – End-stage disease, refractory heart failure requiring specialized interventions	IV – Symptomatic at rest, inability to exert oneself	5- Exertion intolerant
		4- Resting symptoms
		3- Inotrope dependent, but stable
		2- Progressive decline
		1- Critical cardiogenic shock