The 2010 ICD-9 brought major changes to the embolism and thrombosis codes. Here is what you get in 2010:
In 2009, your coding options were 451.0-451.9 (Phlebitis and thrombophlebitis) and 453.0-453.9 (Other venous embolism and thrombosis).
Problem: Thrombophlebitis is a term that is rarely used, due to the lack of clinical significance of phlebitis’.
Coding has paralleled this reduced use of thrombophlebitis, with 453.x (embolism and thrombosis) reported much more frequently than 451.x (phlebitis and thrombophlebitis).
An expansion [...]
