ICD10BillableValid for clinical use

ICD-10 Code I70.45: Atherosclerosis of autologous vein bypass graft(s) of other extremity with ulceration

I70.45 is a billable ICD-10 diagnosis code used to classify Atherosclerosis of autologous vein bypass graft(s) of other extremity with ulceration 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).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

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 atherosclerosis of autologous vein bypass graft(s) of other extremity with ulceration 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
I70-I79Diseases of arteries, arterioles and capillaries
category
I70Atherosclerosis
category
I70.4Atherosclerosis of autologous vein bypass graft(s) of the extremities
currentI70.4

Official coding notes

Includes
  • any condition classifiable to I70.418, I70.428, and I70.438
Applicable to
  • code to identify severity of ulcer (L98.49)
Use additional code
  • code to identify severity of ulcer (L98.49)

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 78434high
ABSOLUTE QUANTITATION OF MYOCARDIAL BLOOD FLOW (AQMBF), POSITRON EMISSION TOMOGRAPHY (PET), REST AND PHARMACOLOGIC STRESS (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 0742Thigh
ABSOLUTE QUANTITATION OF MYOCARDIAL BLOOD FLOW (AQMBF), SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY (SPECT), WITH EXERCISE OR PHARMACOLOGIC STRESS, AND AT REST, WHEN PERFORMED (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 75710high
ANGIOGRAPHY, EXTREMITY, UNILATERAL, RADIOLOGICAL SUPERVISION AND INTERPRETATION
Source: CMS coverage guidance
CPT 97034high
APPLICATION OF A MODALITY TO 1 OR MORE AREAS; CONTRAST BATHS, EACH 15 MINUTES
Source: CMS coverage guidance
CPT 97032high
APPLICATION OF A MODALITY TO 1 OR MORE AREAS; ELECTRICAL STIMULATION (MANUAL), EACH 15 MINUTES
Source: CMS coverage guidance
CPT 97026high
APPLICATION OF A MODALITY TO 1 OR MORE AREAS; INFRARED
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Atherosclerosis of autologous vein bypass graft(s) of other extremity with ulcerationAtherosclerosis of autologous vein bypass graftAtherosclerosis of autologous vein bypass graft s of other extremity with ulceration

Frequently asked questions

Code details

CodeI70.45
SystemICD10
Display nameAtherosclerosis of autologous vein bypass graft(s) of other extremity with ulceration
ChapterDiseases of the circulatory system (I00-I99)
BlockDiseases of arteries, arterioles and capillaries

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Arteriosclerosis, arteriosclerotic(diffuse) (obliterans) (of) (senile) (with calcification)

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.