ICD-10-CM 2027
ICD-10 code for Gastrocnemial vein phlebitis
From the official ICD-10-CM alphabetic index entry “Phlebitis (infective) (pyemic) (septic) (suppurative) › gastrocnemial vein”. Page updated September 29, 2026.
About coding Gastrocnemial vein phlebitis
The ICD-10-CM code for Gastrocnemial vein phlebitis is I80.25 (Phlebitis and thrombophlebitis of calf muscular vein).
Within I80.2 (phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities), I80.25 is specifically for phlebitis and thrombophlebitis of calf muscular vein. Related codes cover unspecified deep vessels of lower extremities (I80.20), iliac vein (I80.21), popliteal vein (I80.22), tibial vein (I80.23), peroneal vein (I80.24) and other deep vessels of lower extremities (I80.29).
To report this condition, pick the subcode that matches the documentation: I80.251 (vein), I80.252 (vein), I80.253 (bilateral) and I80.259 (vein).
Code first: , if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7) and phlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-).