I80.2

⚠ Non-billable (Header)

Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities

Diseases of the circulatory system (I00-I99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

I80

• venous embolism and thrombosis of lower extremities (I82.4-, I82.5-, I82.81-)

📋 Code Instructions

inherited

I80

• Code first: , if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7)
• Code first: phlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-)

Child Codes (7)

I80.20Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremitiesHeader I80.21Phlebitis and thrombophlebitis of iliac veinHeader I80.22Phlebitis and thrombophlebitis of popliteal veinHeader I80.23Phlebitis and thrombophlebitis of tibial veinHeader I80.24Phlebitis and thrombophlebitis of peroneal veinHeader I80.25Phlebitis and thrombophlebitis of calf muscular veinHeader I80.29Phlebitis and thrombophlebitis of other deep vessels of lower extremitiesHeader

Clinical Description

ICD-10-CM code I80.2 represents phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities. This code falls under the Diseases of the circulatory system (I00-I99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 5-character code at the 4th level of specificity. There are 7 more specific child codes under I80.2. Coders should note that I80.2 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code I80.2?

ICD-10-CM code I80.2 is "Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities". It belongs to the category: Diseases of the circulatory system (I00-I99).

Is I80.2 a billable ICD-10 code?

No, I80.2 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with I80.2?

I80.2 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in I80

Other codes in the same category that may be relevant for differential coding:

I80.0Phlebitis and thrombophlebitis of superficial vessels of lower extremities I80.1Phlebitis and thrombophlebitis of femoral vein I80.3Phlebitis and thrombophlebitis of lower extremities, unspecified I80.8Phlebitis and thrombophlebitis of other sites I80.9Phlebitis and thrombophlebitis of unspecified site

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Code Information

CodeI80.2

BillableNo — Header code

ParentI80

CategoryDiseases of the circulatory system (I00-I99)

Excludes11 rule(s)

Excludes20 note(s)

Child codes7

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)