I80.221
BillablePhlebitis and thrombophlebitis of right popliteal 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
Inflammation and blood clot formation in the right popliteal vein, which is located behind the knee.
Coding Tips
Clinical Significance
Phlebitis and thrombophlebitis of the right popliteal vein represents deep vein thrombosis at the junction between the proximal and distal deep venous systems. The popliteal vein is generally considered a proximal vein, and thrombosis here carries meaningful risk of pulmonary embolism. It commonly occurs in the setting of immobility, surgery, or underlying hypercoagulable states, requiring anticoagulation therapy.
Documentation Requirements
- ✓Duplex ultrasound confirming popliteal vein thrombosis with non-compressibility and/or visible thrombus
- ✓Laterality — right popliteal vein documented
- ✓Acuity — acute, subacute, or chronic thrombosis
- ✓Assessment of clot extent (proximal or distal extension)
- ✓Evaluation for pulmonary embolism symptoms
- ✓Anticoagulation plan with specific agent and planned duration
- ✓Risk factor documentation and assessment
Commonly Confused Codes
I80.10-I80.13 — Femoral vein thrombophlebitis: more proximal vein involvementI80.23x — Tibial vein thrombophlebitis: more distal veinI87.2 — Venous insufficiency (chronic): late sequela, not acute thrombosisI80.0x — Superficial vessel thrombophlebitis: superficial, not deepM79.661-M79.669 — Pain in lower leg: symptom code, not a thrombosis diagnosis
Code Hierarchy
└I80Phlebitis and thrombophlebitis└I80.2Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities└I80.22Phlebitis and thrombophlebitis of popliteal vein└I80.221Phlebitis and thrombophlebitis of right popliteal vein
└I80.221Phlebitis and thrombophlebitis of right popliteal vein