Table A1.

Definition of Chronic Conditions Based on Hierarchical Condition Categories (HCCs) developed by the Centers of Medicare & Medicaid Services. Categories chosen for chronic nature, association with mortality and costs.

Hierarchical Condition Categories (HCC)/RxHCC/ICD-9 Label and Number
CORONARY ARTERY DISEASE	HCC 81, HCC82, HCC83
CANCER	HCC7, HCC8, HCC9
CEBROVASCULAR DISEASE & STROKE	HCC96, HCC100(REMOVE ICD9 343.X), HCC95
CONGESTIVE HEART FAILURE	HCC80
CONNECTIVE TISSUE DISEASE	HCC38
CHRONIC OBSTRUCTIVE PULMONARY DISEASE	HCC108
DIABETES	HCC15, HCC16, HCC17, HCC18, HCC19 HCC119
HEMATOLOGIC/ THROMBOTIC DISEASE	HCC44, RXHCC100 (REMOVE ICD9 343.X)
LIVER DISEASE	HCC25, HCC26, HCC27
PARKINSON’S/HUNTINGTON’S	HCC73
PARALYSIS (NOT STROKE)	HCC67, HCC68, HCC69
RENAL DISEASE	HCC130, HCC131, HCC132
SEVERE MENTAL ILLNESS*	HCC54, HCC55 (REMOVE e codes from HCC55)
PERIPHERAL VASCULAR DISEASE	HCC105
DEPRESSION*	RxHCC62, ICD-9 296.2X, ICD-9 296.3X
DEMENTIA	RxHCC54, RxHCC55
SUBSTANCE USE DISORDER*	HCC51, HCC52

Notes:

^*Severe Mental Illness= includes schizophrenia, bipolar disease, and depression; Depression= major depressive disorder, single episode; major depressive disorder, recurrent episode; depression Not Otherwise Specified and Not Elsewhere Classified; Substance Use Disorder= drug/alcohol dependence and drug/alcohol mental illness