ICD-9-CM diagnosis code (retired)
451.19 — Phlebitis and thrombophlebitis of deep veins of lower extremities, other
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 451.19
451.19 is an ICD-9-CM diagnosis code for phlebitis and thrombophlebitis of deep veins of lower extremities, other. 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 one ICD-10-CM code, I80.209 (Phlebitis and thrombophlebitis of unspecified deep vessels of unspecified lower extremity). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- I80.209Phlebitis and thrombophlebitis of unspecified deep vessels of unspecified lower extremityapproximate
Common questions about 451.19
What is the ICD-10 code for ICD-9 451.19?
- The GEMs map 451.19 to ICD-10-CM I80.209.
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.