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2. ICD-10 Codes
3. Chapter - I00-I99
4. Section - I80-I89
5. Category - I80
6. I80.21

I80.21 - Phlebitis and thrombophlebitis of iliac vein

• Applicable to Phlebitis and thrombophlebitis of iliac vein
• The 2025 edition of ICD10-CM I80.21 became effective on October 1, 2024.
• This is the American ICD10-CM version of I80.21 - other international versions of ICD10 I80.21 may differ.
• I80.21 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• I80.21 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.

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

The following codes above I80.21 contain annotation back-references that may be applicable to I80.21:

• Chapter: I00-I99 - Diseases of the circulatory system
• Section: I80-I89 - Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
• Category: I80 - Phlebitis and thrombophlebitis

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.