ICD-9-CM diagnosis code (retired)
453.50 — Chronic venous embolism and thrombosis of unspecified deep vessels of lower extremity
About ICD-9-CM 453.50
453.50 is an ICD-9-CM diagnosis code for chronic venous embolism and thrombosis of unspecified deep vessels of lower extremity. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 2 ICD-10-CM codes, such as I82.509 (Chronic embolism and thrombosis of unspecified deep veins of unspecified lower extremity) and I82.599 (Chronic embolism and thrombosis of other specified deep vein of unspecified lower extremity). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 453.50
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.