I80.299 — Phlebitis and thrombophlebitis of other deep vessels of unspecified lower extremity
I80.299 is a billable, specific ICD-10-CM code for phlebitis and thrombophlebitis of other deep vessels of unspecified lower extremity. It is valid for submission on a claim.
Risk adjustment
I80.299 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 267 Deep Vein Thrombosis and Pulmonary Embolism0.294 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
I80.299 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52996Billing and Coding: Routine Foot Care
- A56680Billing and Coding: Routine Foot Care
- A57188Billing and Coding: Routine Foot Care
- A57188Billing and Coding: Routine Foot Care
How I80.299 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 I80.299.
- Thrombophlebitis›lower extremity
Related codes at this level
Codes that share I80.29. If I80.299 is not quite right, the correct code is usually one of these.
Questions about I80.299
- Is I80.299 a billable ICD-10-CM code?
- Yes. I80.299 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I80.299 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).