Figure 1
From: Validation of ICD-9-CM coding algorithm for improved identification of hypoglycemia visits
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1472-6823-8-4/MediaObjects/12902_2007_Article_43_Fig1_HTML.jpg)
ICD-9-CM coding algorithm to identify emergency department visits for hypoglycemia. ICD-9-CM – International Classification of Diseases, Ninth Revision. * Consider exclusion of this code from algorithm, since positive predictive value was 54% in this analysis, and exclusion improved the accuracy of the algorithm.