Table 1.

Algorithm’s for Detection of Venous Thromboembolism

Algorithm (1)	Algorithm (2)	Algorithm (3)
ICD-9-CM code for VTE	ICD-9-CM code for VTE PLUS (at least one of the following criteria) Pharmacy Script for Anticoagulation Within 30 days of ICD-9 diagnosis of VTE Placement of an Inferior Vena Cava Filter Within 30 days of ICD-9 diagnosis of VTE Death Within 30 days of ICD-9 diagnosis	ICD-9-CM code for VTE PLUS (at least one of the following criteria) Pharmacy Script for Anticoagulation Within 30 days of ICD-9 diagnosis of VTE Placement of an Inferior Vena Cava Filter Within 30 days of ICD-9 diagnosis of VTE Death Within 30 days of ICD-9 diagnosis PLUS CPT code for a VTE Diagnostic Study