ICDxICD-10 Medical Coding

ICDxICD-10 Medical Coding

ICD-10 Guide

Abdominal Aortic Atherosclerosis

ICD-10 Coding for Abdominal Aortic Atherosclerosis(I70.0)

PRIMARY SPECIALTYCardiology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Abdominal Aortic Atherosclerosis?

Essential facts and insights about Abdominal Aortic Atherosclerosis

Key Clinical Considerations:

Presence of plaque or fatty deposits in the abdominal aorta
Symptoms of abdominal discomfort or pain
Evidence of reduced blood flow to the lower body
Findings from imaging studies such as ultrasound, CT scan, or MRI

Clinical Information

Clinical Criteria & Documentation Requirements

Detailed description of patient's symptoms
Clinical findings from physical examination
Results from diagnostic imaging studies
Treatment plan and patient response

Coding Guidelines

Usage Guidelines & Examples

I70.0 is specific for atherosclerosis of the abdominal aorta. Other codes in the I70 series apply to atherosclerosis in different locations.
I70.0 should not be confused with I71.4, which refers to an abdominal aortic aneurysm.

Code Exclusions

Important Exclusions

Atherosclerosis in other arteries (use appropriate I70 codes)
Abdominal aortic aneurysm (I71.4)

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

Patients with atherosclerosis localized in the abdominal aorta
Scenarios where atherosclerosis is causing abdominal discomfort or reduced blood flow to the lower body

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

Comprehensive clinical documentation
Accurate code selection based on clinical criteria
Proper exclusion considerations
Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Patient presents with symptoms suggestive of abdominal aortic atherosclerosis, including...

Template 2

Diagnostic imaging confirms presence of atherosclerosis in the abdominal aorta...

Template 3

Treatment plan for abdominal aortic atherosclerosis includes...

Billing Information

Billing Considerations

Ensure proper documentation for billing
Verify code specificity requirements
Check for any additional codes needed
Review payer-specific guidelines

Common Issues

Insufficient clinical documentation
Incorrect code selection
Missing supporting diagnoses
Timing and frequency documentation

Frequently Asked Questions

What is the difference between I70.0 and other I70 codes?

I70.0 is specific for atherosclerosis of the abdominal aorta. Other I70 codes refer to atherosclerosis in different arteries.

When should this code be used?

This code should be used when a patient has been diagnosed with atherosclerosis in the abdominal aorta, based on clinical and diagnostic findings.