Questions/Measures and ICD-9-CM Codes Used to Define HF Conditions in NHANES and MEPS

Condition	Qualifying Questions/Measures From NHANES	ICD-9 Codes From MEPS
Hypertension	Were you told on 2 or more different visits that you had hypertension, also called high blood pressure? Are you now taking prescribed medicine for your high blood pressure? Average SBP ≥140 mm Hg or average DBP ≥90 mm Hg	401, 403
Coronary heart disease	Has a doctor or other health professional ever told you that you had coronary heart disease? Has a doctor or other health professional ever told you that you had angina, also called angina pectoris? Has a doctor or other health professional ever told you that you had a heart attack (also called myocardial infarction)? Rose Questionnaire	410, 411, 412, 413, 414
Heart failure	Has a doctor or other health professional ever told you that you had congestive heart failure?	428
Stroke	Has a doctor or other health professional ever told you that you had a stroke?	430, 431, 433, 434, 436, 438
Other heart failure, including cerebrovascular	NA	390, 391, 393–400, 402, 404, 405, 415–427, 429, 432, 435, 437, 440–448, 450–459, 745–747

DBP indicates diastolic blood pressure; HF, heart failure; ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification; MEPS, Medical Expenditure Panel Survey; NA, not applicable; NHANES, National Health and Nutrition Examination Survey; and SBP, systolic blood pressure.