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Medicaid Managed Care - U.S. Senate Special Committee on Aging

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667<br />

Sources Smith NS, Weiner J: Applying populati<strong>on</strong>-based case mix adjustment<br />

in managed care: the Hopkins Ambulatory <str<strong>on</strong>g>Care</str<strong>on</strong>g> Group system.<br />

<str<strong>on</strong>g>Managed</str<strong>on</strong>g> <str<strong>on</strong>g>Care</str<strong>on</strong>g> Quanerly. 2:21-34, 1994.<br />

Weiner JP, Dobs<strong>on</strong> A, Maxwell SL, Coleman K, Starfield BH.<br />

Anders<strong>on</strong> GF: Risk-adjusted Medicare capitati<strong>on</strong> rates using<br />

ambulatory and inpatient diagnoses. Health <str<strong>on</strong>g>Care</str<strong>on</strong>g> Financing Review.<br />

17:77-99, 1996.<br />

Weiner JP, Starfield BH, Lieberman RN: John Hopkins Ambulatory<br />

<str<strong>on</strong>g>Care</str<strong>on</strong>g> Groups (ACGs): a case-mix system for utilizati<strong>on</strong> review,<br />

quality assurance and capitati<strong>on</strong> adjustment. HMO Practice. 6:13-19,<br />

1991.<br />

Weiner J, Starfield B. Steinwachs D, Mumford L: Development and<br />

applicati<strong>on</strong> of a populati<strong>on</strong>-oriented measure of ambulatory care<br />

case-mix. Medical <str<strong>on</strong>g>Care</str<strong>on</strong>g>. 29:452-461, 1991.<br />

12. Diagnostic Cost Groups (DCGs) I<br />

Purpose Alternative to the current Medicare payment method for riskc<strong>on</strong>tracting<br />

HMOs<br />

Predictors Age, gender, welfare status, diagnosis, and prior utilizati<strong>on</strong><br />

Method Classificati<strong>on</strong> system based <strong>on</strong> diagnosis and costs associated with<br />

hospitalizati<strong>on</strong>s lasting three days or l<strong>on</strong>ger. Nearly 800 diagnostic<br />

codes are aggregated into clinically meaningful subgroups and, using<br />

diagnostic and cost data from the Medicare populati<strong>on</strong>, collapsed into<br />

nine diagnostic cost groups.<br />

Testing and Use Medicare claims data<br />

Strengths * Individuals can be classified into more than <strong>on</strong>e group.<br />

* Data to implement DCG system are available.<br />

Linits * Exclusively inpatient-based.<br />

* Developed for use in the Medicare populati<strong>on</strong> and has not<br />

been validated for pediatric populati<strong>on</strong>s.<br />

44-098 97 - 22<br />

Is

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