The ICD-9-CM DRGs: increased homogeneity through use of AS-SCORE

Area of Science:

• Health Services Research
• Medical Informatics
• Hospital Administration

Background:

• Existing case-mix measurement systems may not adequately reflect patient severity.
• Accurate measurement is crucial for resource allocation and reimbursement, especially in urban and teaching hospitals.
• Physicians, nurses, and administrators need meaningful tools to predict patient resource utilization.

Purpose of the Study:

• To evaluate the AS-SCORE system for measuring patient severity within Diagnosis-Related Groups (DRGs).
• To assess the clinical coherence and reliability of the AS-SCORE system.
• To determine the system's sensitivity to nursing care requirements when integrated with nursing cost accounting.

Main Methods:

• Application of the AS-SCORE system to Diagnosis-Related Groups (DRGs).
• Clinical coherence assessment by considering all patient conditions and complications.
• Evaluation of sensitivity to nursing care requirements in conjunction with nursing cost accounting.

Main Results:

• AS-SCORE provides a clinically coherent and reliable measure of patient severity.
• The system is sensitive to nursing care requirements.
• It has potential for improving case-mix measurement for resource prediction and reimbursement.

Conclusions:

• AS-SCORE offers a valuable tool for case-mix measurement, particularly for predicting resource use and informing reimbursement.
• Further studies are needed to validate its applicability across diverse DRG categories and in different regional settings.
• Selective application of severity subcategorization may be necessary to maintain manageable group numbers.