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2025 ICD-10-CM code I80.3

Phlebitis and thrombophlebitis of lower extremities, unspecified.

If the specific vein affected is known, a more specific code under I80 should be used. Code I80.3 is used when the specific deep or superficial vein is not specified or documented.

Medical necessity is established by the presence of signs and symptoms of phlebitis and thrombophlebitis, such as pain, swelling, redness, and warmth in the lower extremity.Further investigation and treatment are often necessary to prevent complications like deep vein thrombosis or pulmonary embolism.

Diagnosis and management of phlebitis and thrombophlebitis, including evaluating the extent and cause of the condition, and determining appropriate treatment, such as medications, compression therapy, and lifestyle changes.

In simple words: Inflammation and possible blood clot formation in the leg veins, without specifying the exact location.

Inflammation of the veins in the lower extremities, with or without the presence of a blood clot (thrombus), where the specific vein affected is not specified.

Example 1: A patient presents with pain, swelling, and redness in their lower leg. The physician diagnoses phlebitis of the lower extremity, but further testing is needed to identify the specific vein involved., A patient with a history of varicose veins develops thrombophlebitis in their lower leg.The exact location of the thrombus is not yet determined through imaging., A patient experiences leg pain and swelling after a long flight.Initial examination suggests phlebitis or thrombophlebitis in the lower extremity, but without identifying a specific affected vein.

Documentation should include the affected extremity (right, left, or bilateral), signs and symptoms, clinical findings, and any diagnostic test results (e.g., ultrasound) performed.

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