Does date stamping ICD-9-CM codes increase the value of clinical information in administrative data?

ABSTRACT:

Context

Comorbidity measures are designed to exclude complications when they map International Classification of Diseases (ICD-9-CM) codes to diagnostic categories. The use of data fields that indicates whether each secondary diagnosis was present at the time of hospital admission may lead to the more accurate identification of preexisting conditions.

Objective

To examine the rate of misclassification of ICD-9-CM codes into diagnostic categories by the Dartmouth-Manitoba adaptation of the Charlson index and by the Elixhauser comorbidity algorithm.

Data source

Analysis of 178,838 patients in the California State Inpatient Database (CA SID) admitted in 2000 for one of seven major medical and surgical conditions. The CA SID includes a condition present at admission (CPAA

SUBMITTER: Glance LG 

PROVIDER: S-EPMC1681527 | biostudies-literature | 2006 Feb

REPOSITORIES: biostudies-literature