I82.B21
I82.B21 — Chronic embolism and thrombosis of right subclavian vein
Billable / specific codeICD-10-CMright
I82.B21 is a billable, specific ICD-10-CM code for chronic embolism and thrombosis of right subclavian vein. It is valid for submission on a claim.
Risk adjustment
I82.B21 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
I82.B21 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.
- A52993Billing and Coding: Peripheral Venous Ultrasound
- A56414Billing and Coding: Endovenous Stenting
- A56541Billing and Coding: Biomarkers Overview
- A56644Billing and Coding: Endovenous Stenting
Related codes at this level
Codes that share I82.B2. If I82.B21 is not quite right, the correct code is usually one of these.
Questions about I82.B21
- Is I82.B21 a billable ICD-10-CM code?
- Yes. I82.B21 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I82.B21 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).