ICDwise
I80 ⚠ Non-billable

Phlebitis and thrombophlebitis

ICD-10-CM · FY2026 · Diseases of the Circulatory System

Code
I80
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Includes
  • endophlebitis
  • inflammation, vein
  • periphlebitis
  • suppurative phlebitis
Excludes1 — never code together
  • venous embolism and thrombosis of lower extremities (I82.4-, I82.5-, I82.81-)
Code first
  • , if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7)
  • phlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-)

Frequently asked questions

What is ICD-10 code I80?
ICD-10-CM code I80 represents Phlebitis and thrombophlebitis. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I80 billable?
No. I80 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is I80 in?
I80 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.

Related codes in the I80 category

I80.0 Phlebitis and thrombophlebitis of superficial vessels of lower extremities Non-billable I80.1 Phlebitis and thrombophlebitis of femoral vein Non-billable I80.2 Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities Non-billable I80.3 Phlebitis and thrombophlebitis of lower extremities, unspecified Billable I80.8 Phlebitis and thrombophlebitis of other sites Billable I80.9 Phlebitis and thrombophlebitis of unspecified site Billable I80.00 Phlebitis and thrombophlebitis of superficial vessels of unspecified lower extremity Billable I80.01 Phlebitis and thrombophlebitis of superficial vessels of right lower extremity Billable

Search all 98,186 ICD-10-CM codes instantly

Search ICDwise →