Comorbidity measures for use with administrative data.

@article{Elixhauser1998ComorbidityMF,
  title={Comorbidity measures for use with administrative data.},
  author={Anne Elixhauser and Claudia Angelica Steiner and Donald Robert Harris and Rosanna M. Coffey},
  journal={Medical care},
  year={1998},
  volume={36 1},
  pages={
          8-27
        }
}
OBJECTIVES This study attempts to develop a comprehensive set of comorbidity measures for use with large administrative inpatient datasets. METHODS The study involved clinical and empirical review of comorbidity measures, development of a framework that attempts to segregate comorbidities from other aspects of the patient's condition, development of a comorbidity algorithm, and testing on heterogeneous and homogeneous patient groups. Data were drawn from all adult, nonmaternal inpatients from… 
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