Med Care - Accuracy of ICD-9-CM codes for identifying cardiovascular and stroke risk factors.

Birman-Deych E, Waterman AD, Yan Y, Nilasena DS, Radford MJ, Gage BF.
Med Care. 2005 May;43(5):480-5

www.ncbi.nlm.nih.gov/entrez/query.fcgi?...