I80.252
BillablePhlebitis and thrombophlebitis of left calf muscular vein
HCC Category Mapping
V28HCC 267 — Vascular Disease
0.356V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000RxHCCHCC 215 — Pulmonary Embolism and Other Vascular Disease
0.000What This Code Means
This code describes inflammation and blood clot formation in a vein located in the calf muscle of the left leg. It's a condition where the vein becomes swollen and painful due to clot development.
Coding Tips
- •Verify laterality is documented as left; if bilateral or right calf is affected, use different codes (I80.251 for right, I80.253 for bilateral)
- •Distinguish between phlebitis (inflammation only) and thrombophlebitis (inflammation with clot); this code includes both conditions and requires documentation of clot presence
Clinical Significance
Phlebitis and thrombophlebitis of the left calf muscular vein involves the soleal or gastrocnemius veins, which are intramuscular deep veins. While these are the most distal deep veins and carry the lowest individual risk of pulmonary embolism among deep vein thrombosis locations, they can still propagate proximally. Management decisions between anticoagulation and surveillance vary by clinical context and institutional protocols.
Documentation Requirements
- ✓Duplex ultrasound confirming calf muscular vein (soleal or gastrocnemius) thrombosis
- ✓Laterality — left calf documented
- ✓Specification of soleal vs. gastrocnemius vein when documented
- ✓Acuity — acute vs. chronic thrombosis
- ✓Clinical rationale for treatment approach (anticoagulation vs. surveillance)
- ✓Risk factor assessment for propagation
- ✓Follow-up imaging plan if surveillance strategy chosen
Commonly Confused Codes
I80.23x — Tibial vein thrombophlebitis: axial calf deep veins, not intramuscularI80.24x — Peroneal vein thrombophlebitis: axial calf deep veins, not intramuscularI80.22x — Popliteal vein thrombophlebitis: proximal deep vein, higher riskI80.0x — Superficial vessel thrombophlebitis: superficial veins onlyM79.661-M79.669 — Pain in lower leg: symptom code, not a vascular diagnosis
Code Hierarchy
└I80Phlebitis and thrombophlebitis└I80.2Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities└I80.25Phlebitis and thrombophlebitis of calf muscular vein└I80.252Phlebitis and thrombophlebitis of left calf muscular vein
└I80.252Phlebitis and thrombophlebitis of left calf muscular vein