I80.3 — Phlebitis and thrombophlebitis of lower extremities, unspecified
I80.3 is a billable, specific ICD-10-CM code for phlebitis and thrombophlebitis of lower extremities, unspecified. It is valid for submission on a claim.
Risk adjustment
I80.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
I80.3 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52870Billing and Coding: Treatment of Varicose Veins of the Lower Extremity
- A52996Billing and Coding: Routine Foot Care
- A56232Billing and Coding: Foot Care
- A56680Billing and Coding: Routine Foot Care
How I80.3 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I80.3.
- Phlebitis›leg
- Thrombophlebitis›leg
Related codes at this level
Codes that share I80. If I80.3 is not quite right, the correct code is usually one of these.
- I80.0Phlebitis and thrombophlebitis of superficial vessels of lower extremities
- I80.1Phlebitis and thrombophlebitis of femoral vein
- I80.2Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities
- I80.8Phlebitis and thrombophlebitis of other sites
- I80.9Phlebitis and thrombophlebitis of unspecified site
Questions about I80.3
- Is I80.3 a billable ICD-10-CM code?
- Yes. I80.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I80.3 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89).