I82.5Y2
BillableChronic embolism and thrombosis of unspecified deep veins of left proximal lower extremity
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
A chronic blood clot in the deep veins of the upper thigh or hip area on the left side of the body.
Coding Tips
- •This code indicates chronic (long-standing) thrombosis, not acute; verify documentation confirms chronic status
- •The 'Y' designator indicates proximal location; ensure the clot location is documented as proximal rather than distal
Clinical Significance
Chronic deep vein thrombosis of the proximal lower extremity (unspecified) indicates a long-standing thrombus that has organized within the venous system, often leading to post-thrombotic syndrome with chronic swelling, pain, and skin changes. This condition requires ongoing anticoagulation management and monitoring for recurrent thromboembolism and venous insufficiency. Accurate capture of chronic deep vein thrombosis is essential for risk adjustment as it reflects persistent vascular disease burden.
Documentation Requirements
- ✓Provider documentation explicitly stating 'chronic' deep vein thrombosis (not assumed from duration of treatment)
- ✓Clinical evidence supporting the diagnosis such as duplex ultrasound, venography, or other imaging results
- ✓Query provider for specific vein location when possible
- ✓Documentation confirming left-sided laterality
- ✓Current treatment plan including anticoagulation therapy and duration
- ✓Assessment and monitoring notes demonstrating the condition is being actively managed
- ✓Documentation of chronicity such as 'chronic,' 'old,' 'long-standing,' or history of prior acute deep vein thrombosis that has transitioned to chronic status
Commonly Confused Codes
I82.5Y- includes femoral, iliac, and popliteal veins collectively; if a specific vein is documented, use I82.51-, I82.52-, or I82.53- insteadI82.5Z- — Chronic embolism of unspecified deep veins of distal lower extremity; proximal refers to above the knee, distal refers to below the kneeI82.50- — Chronic embolism of unspecified deep veins of lower extremity (neither proximal nor distal specified)
Code Hierarchy
└I82Other venous embolism and thrombosis└I82.5Chronic embolism and thrombosis of deep veins of lower extremity└I82.5YChronic embolism and thrombosis of unspecified deep veins of proximal lower extremity└I82.5Y2Chronic embolism and thrombosis of unspecified deep veins of left proximal lower extremity
└I82.5Y2Chronic embolism and thrombosis of unspecified deep veins of left proximal lower extremity