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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: Med Care. 2017 Dec;55(12):e137–e143. doi: 10.1097/MLR.0000000000000524

Table 4.

Positive Predictive Values of Individual ICD-9 Codes for VTE. n/a indicates that there were no subjects with that code.

Code Definition Hospital/Emergency Department Outpatient
Pulmonary embolism
415.1 Pulmonary embolism and infarction 0.0% (0/1) n/a
415.11 Iatrogenic pulmonary embolism and infarction 79.0% (64/81) 28.6% (2/7)
415.19 Other pulmonary embolism and infarction 79.1% (932/1178) 28.0% (72/257)
Lower extremity DVT
451.11 Phlebitis and thrombophlebitis of femoral vein 10.7% (3/28) 8.3% (1/12)
451.19 Phlebitis and thrombophlebitis of deep veins of lower extremities, other 36.4% (24/66) 38.5% (40/104)
451.2 Phlebitis and thrombophlebitis of lower extremities, unspecified 7.1% (2/28) 8.8% (3/34)
451.81 Phlebitis and thrombophlebitis of iliac vein 50.0% (1/2) n/a
453.40 Venous embolism and thrombosis of unspecified deep vessels of lower extremity 58.8% (190/323) 61.1% (187/306)
453.41 Acute venous embolism and thrombosis of deep vessels of proximal lower extremity 83.6% (199/238) 80.9% (38/47)
453.42 Acute venous embolism and thrombosis of deep vessels of distal lower extremity 79.7% (145/182) 56.3% (27/48)
453.5 Chronic venous embolism and thrombosis of deep vessels of lower extremity 0.0% (0/4) 50.0% (1/2)
453.51 Chronic venous embolism and thrombosis of deep vessels of proximal lower extremity 50.0% (1/2) 0.0% (0/1)
453.52 Chronic venous embolism and thrombosis of deep vessels of distal lower extremity 100% (1/1) n/a
Upper extremity DVT
451.83 Phlebitis and thrombophlebitis of deep veins of upper extremities 71.4% (10/14) 0.0% (0/3)
451.84 Phlebitis and thrombophlebitis of upper extremities, unspecified 3.9% (2/51) 0.0% (0/22)
451.89 Phlebitis and thrombophlebitis of other upper extremity site 40.7% (11/27) 10.5% (2/19)
453.72 Chronic venous embolism and thrombosis of deep veins of upper extremity 100% (2/2) n/a
453.73 Chronic venous embolism and thrombosis of upper extremity, unspecified n/a n/a
453.74 Chronic venous embolism and thrombosis of axillary veins n/a n/a
453.75 Chronic venous embolism and thrombosis of subclavian veins 0.0% (0/1) n/a
453.76 Chronic venous embolism and thrombosis of subclavian veins n/a 0.0% (0/1)
453.77 Chronic venous embolism and thrombosis of other thoracic veins n/a n/a
453.82 Acute venous embolism and thrombosis of deep veins of upper extremity 100% (4/4) 100% (1/1)
453.83 Acute venous embolism and thrombosis of deep veins of upper extremity 60.0% (3/5) n/a
453.84 Acute venous embolism and thrombosis of axillary veins 80.0% (4/5) n/a
453.85 Acute venous embolism and thrombosis of subclavian veins 100% (5/5) n/a
453.86 Acute venous embolism and thrombosis of internal jugular veins 50.0% (2/4) n/a
453.87 Acute venous embolism and thrombosis of other thoracic veins 100% (3/3) n/a
Other venous thrombosis
451.9 Phlebitis and thrombophlebitis of unspecified site 12.9% (4/31) 4.0% (12/303)
452 Portal vein thrombosis 58.5% (38/65) 42.9% (9/21)
453.0 Budd-Chiari syndrome 11.1% (1/9) 0.0% (0/1)
453.1 Thrombophlebitis migrans n/a 0.0% (0/1)
453.2 Other venous embolism and thrombosis of inferior vena cava 62.5% (10/16) 33.3% (1/3)
453.3 Other venous embolism and thrombosis of renal vein 66.7% (4/6) 33.3% (1/3)
453.79 Chronic venous embolism and thrombosis of other specified veins 50.0% (1/2) n/a
453.8 Acute venous embolism and thrombosis of other specified veins 47.9% (172/359) 31.1% (118/379)
453.89 Acute venous embolism and thrombosis of other specified veins 20.0% (1/5) 0.0% (0/2)
453.9 Other venous embolism and thrombosis of unspecified site 20.4% (29/142) 15.4% (27/175)