In simple words: This code describes inflammation (phlebitis) or inflammation with blood clot formation (thrombophlebitis) in the deep veins of the legs.It doesn't include blood clots that block the vein (deep vein thrombosis).

This code classifies phlebitis and thrombophlebitis affecting unspecified or other deep veins in the lower extremities.It includes conditions such as endophlebitis, inflammation, periphlebitis, and suppurative phlebitis.It excludes venous embolism and thrombosis of the lower extremities (I82.4-, I82.5-, I82.81-), and should be coded first if phlebitis and thrombophlebitis complicate abortion, ectopic or molar pregnancy (O00-O07, O08.7) or pregnancy, childbirth, and the puerperium (O22.-, O87.-).

Example 1: A 60-year-old male patient presents with pain and swelling in his right calf, accompanied by redness and warmth.Doppler ultrasound confirms deep vein thrombosis (DVT) in the posterior tibial vein.I80.2 is not appropriate in this case.The appropriate code would reflect DVT., A 75-year-old female patient with a history of varicose veins experiences localized pain and tenderness in her left lower leg. Physical examination reveals a palpable, hardened vein with surrounding erythema.A diagnosis of superficial thrombophlebitis is made. This code is not appropriate for superficial thrombophlebitis.The appropriate code would reflect the location of the superficial thrombophlebitis., A 45-year-old woman is admitted post-partum with leg swelling and pain. Examination reveals a tender, indurated vein in the deep calf.The condition is confirmed as thrombophlebitis, not secondary to pregnancy or childbirth. This might be an appropriate code, but additional information on the location of the affected vein is needed for accurate coding. Additional codes are likely needed depending on whether the thrombophlebitis complicates the postpartum condition.

Detailed clinical examination notes, including location and extent of the affected vessel(s), physical findings (e.g., erythema, induration, tenderness), and supporting diagnostic imaging (e.g., Doppler ultrasound, venography).Consideration of any contributing factors such as pregnancy, surgery, trauma, or underlying medical conditions.

** This code is for phlebitis and thrombophlebitis in the deep veins of the lower leg.It is crucial to differentiate it from superficial thrombophlebitis, which has different coding.Always confirm the location of the affected veins with imaging or other suitable diagnostic techniques to ensure correct coding.