TABLE 1

Distribution of ICD-9-CM Codes According to VTE Location (N = 14 917)

Location of VTEnICD-9-CM Codes
Renal vein338453.3
Portal vein960452, 572.1
Intracranial venous sinus1206325
Upper extremities1377451.83, 451.84, 451.89
Pulmonary embolism1434415.11, 415.19, 415.12
Vena cava1608451.3
Lower extremities1841451.1, 451.11, 451.19, 451.2, 451.81, 453.40, 453.41, 451.42
Unspecified or other6153451.8, 451.9, 453.0, 453.1, 453.8, 453.9, 557