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ICD10BillableValid for clinical use

ICD-10 Code I80.8: Phlebitis and thrombophlebitis of other sites

I80.8 is a billable ICD-10 diagnosis code used to classify Phlebitis and thrombophlebitis of other sites in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

When is it used?

  • May be used when a clinician documents phlebitis and thrombophlebitis of other sites in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
9Diseases of the circulatory system (I00-I99)
block
I80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
category
I80Phlebitis and thrombophlebitis
currentI80

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

CardiologistGeneral Physician

Coverage-related procedures and services

CPT 93970high
DUPLEX SCAN OF EXTREMITY VEINS INCLUDING RESPONSES TO COMPRESSION AND OTHER MANEUVERS; COMPLETE BILATERAL STUDY
Source: CMS coverage guidance
CPT 93971high
DUPLEX SCAN OF EXTREMITY VEINS INCLUDING RESPONSES TO COMPRESSION AND OTHER MANEUVERS; UNILATERAL OR LIMITED STUDY
Source: CMS coverage guidance
CPT 93990high
DUPLEX SCAN OF HEMODIALYSIS ACCESS (INCLUDING ARTERIAL INFLOW, BODY OF ACCESS AND VENOUS OUTFLOW)
Source: CMS coverage guidance
CPT 93985high
DUPLEX SCAN OF ARTERIAL INFLOW AND VENOUS OUTFLOW FOR PREOPERATIVE VESSEL ASSESSMENT PRIOR TO CREATION OF HEMODIALYSIS ACCESS; COMPLETE BILATERAL STUDY
Source: CMS coverage guidance
CPT 93986high
DUPLEX SCAN OF ARTERIAL INFLOW AND VENOUS OUTFLOW FOR PREOPERATIVE VESSEL ASSESSMENT PRIOR TO CREATION OF HEMODIALYSIS ACCESS; COMPLETE UNILATERAL STUDY
Source: CMS coverage guidance
CPT 75710high
ANGIOGRAPHY, EXTREMITY, UNILATERAL, RADIOLOGICAL SUPERVISION AND INTERPRETATION
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
I80.8

Common synonyms

Phlebitis and thrombophlebitis of other sites

Frequently asked questions

Code details

CodeI80.8
SystemICD10
Display namePhlebitis and thrombophlebitis of other sites
ChapterDiseases of the circulatory system (I00-I99)
BlockDiseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Mondor's diseasePhlebitis(infective) (pyemic) (septic) (suppurative)Phlebitis(infective) (pyemic) (septic) (suppurative)Phlebitis(infective) (pyemic) (septic) (suppurative)Phlebitis(infective) (pyemic) (septic) (suppurative)Phlebitis(infective) (pyemic) (septic) (suppurative)PyelophlebitisSyndromeThrombophlebitisThrombophlebitis

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.