I80.21

Non-billable

Phlebitis and thrombophlebitis of iliac vein

I80.21 is the ICD-10-CM code for Phlebitis and thrombophlebitis of iliac vein. It is a non-billable category code — use a more specific child code such as I80.211 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Parent
I80.2
Subcodes
4
Edition
FY2026

I00-I99 Diseases of the circulatory system

Includes

  • Phlebitis and thrombophlebitis of common iliac vein
  • Phlebitis and thrombophlebitis of external iliac vein
  • Phlebitis and thrombophlebitis of internal iliac vein

Frequently asked questions

What is ICD-10 code I80.21?
I80.21 is the ICD-10-CM code for "Phlebitis and thrombophlebitis of iliac vein". It falls under I00-I99 Diseases of the circulatory system.
Is I80.21 a billable code?
No — I80.21 is a non-billable header code. Use a more specific child code (such as I80.211) for billing.
What are the subcodes of I80.21?
I80.21 has 4 more specific child codes, including I80.211, I80.212, I80.213.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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