I80.259 Phlebitis and thrombophlebitis of unspecified calf muscular vein

Billable ICD-10-CM code, FY2026.

Applies from I80 Phlebitis and thrombophlebitis

Includes

• endophlebitis
• inflammation, vein
• periphlebitis
• suppurative phlebitis

Excludes1 (never code together)

• venous embolism and thrombosis of lower extremities (I82.4-, I82.5-, I82.81-)

Code first

• , if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7)
• phlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-)

Applies from I80.25 Phlebitis and thrombophlebitis of calf muscular vein

Applicable to

• Phlebitis and thrombophlebitis of calf muscular vein, NOS
• Phlebitis and thrombophlebitis of gastrocnemial vein
• Phlebitis and thrombophlebitis of soleal vein

Risk adjustment (HCC)

• CMS-HCC V28: HCC 267 — Deep Vein Thrombosis and Pulmonary Embolism
• CMS-HCC V22: HCC 108 — Vascular Disease
• RxHCC V08: HCC 215 — Venous Thromboembolism
• ESRD V24: HCC 108

MS-DRG index

Defines the logic of DRG(s) 299-301 in MDC 05.

Nearby codes

• I80.249 Phlebitis and thrombophlebitis of unspecified peroneal vein
• I80.25 Phlebitis and thrombophlebitis of calf muscular vein
• I80.251 Phlebitis and thrombophlebitis of right calf muscular vein
• I80.252 Phlebitis and thrombophlebitis of left calf muscular vein
• I80.253 Phlebitis and thrombophlebitis of calf muscular vein, bilateral
• I80.259 Phlebitis and thrombophlebitis of unspecified calf muscular vein (this code)
• I80.29 Phlebitis and thrombophlebitis of other deep vessels of lower extremities
• I80.291 Phlebitis and thrombophlebitis of other deep vessels of right lower extremity
• I80.292 Phlebitis and thrombophlebitis of other deep vessels of left lower extremity
• I80.293 Phlebitis and thrombophlebitis of other deep vessels of lower extremity, bilateral
• I80.299 Phlebitis and thrombophlebitis of other deep vessels of unspecified lower extremity