+Stages of elevated BP and hypertension Category Systolic BP (mm Hg) Diastolic BP (mm Hg) Normal < 120 < 80 Elevated 120–129 and <80 Stage I 130–139 or 80–89 Stage II at least 140 or at least 90 Differential diagnosis Other conditions can share features with<unk>  and need to be considered in the differential diagnosis. For example: * Coronary artery<unk>  or ischemic<unk><unk> s due to atherosclerosis * Hypertrophic cardiomyopathy * Left ventricular hypertrophy in athletes * Congestive<unk>  failure or<unk>  failure with normal ejection fraction due to other causes * Atrial fibrillation or other disorders of cardiac rhythm due to other causes * Sleep apnea
Hypertensive heart disease
Hypertrophic cardiomyopathy
Benign hypertension
Essential hypertension
Secondary hypertension
Labile hypertension
Systolic hypertension
Paroxysmal hypertension