ICDxICD-10 Medical Coding

ICDxICD-10 Medical Coding

ICD-10 Guide

Arteriosclerotic Heart Disease

ICD-10 Coding for Arteriosclerotic Heart Disease(I25.10, I25.110)

PRIMARY SPECIALTYCardiology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Arteriosclerotic Heart Disease?

Essential facts and insights about Arteriosclerotic Heart Disease

Key Clinical Considerations:

Presence of chest pain (angina) or discomfort, particularly during exertion or stress.
Evidence of myocardial ischemia through stress testing or imaging studies.
Elevated levels of cardiac biomarkers (e.g., troponins) in the presence of acute coronary syndrome.
Physical examination may reveal signs of heart failure, such as edema or elevated jugular venous pressure.
Severity can be assessed through functional classification (e.g., NYHA classification) or imaging findings indicating left ventricular hypertrophy.

Clinical Information

Clinical Criteria & Documentation Requirements

Complete medical history including risk factors such as hypertension, diabetes, and smoking status.
Specific terminology such as 'atherosclerosis', 'coronary artery disease', or 'ischemic heart disease' must be documented.
Examples include documenting the patient's symptoms, diagnostic tests performed, and treatment plans.
Medical necessity must be established through documentation of symptoms and clinical findings justifying the need for diagnostic tests or procedures.
Quality measures may include documentation of blood pressure control, lipid levels, and lifestyle modifications.

Coding Guidelines

Usage Guidelines & Examples

Use I25.10 for unspecified arteriosclerotic heart disease when no further specification is available.
Do not use this code for acute myocardial infarction or unstable angina, which have separate codes.
I25.110 is used for arteriosclerotic heart disease with angina pectoris; ensure the presence of angina is documented.
Common errors include using the code for acute conditions or failing to specify the type of angina.
In complex cases, ensure to document all relevant clinical details to support the selected code.

Code Exclusions

Important Exclusions

Acute myocardial infarction (I21) and unstable angina (I20.0) are explicitly excluded from this code.
Use I21 codes for acute coronary syndromes instead of I25 codes.
Conditions are excluded because they represent different clinical scenarios requiring distinct management.
Common mistakes include misclassifying acute events as chronic conditions.
Related but distinct conditions include coronary artery spasm (I20.1) and other forms of heart disease.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

Patients with a history of coronary artery disease, myocardial infarction, or angina.
Typically affects older adults, particularly those with risk factors such as obesity, sedentary lifestyle, and family history.
Applicable in various clinical settings including outpatient cardiology clinics, inpatient hospital settings, and emergency departments.
Relevant for cardiology specialists, primary care providers, and emergency medicine practitioners.
Used in treatment contexts involving lifestyle modifications, pharmacotherapy, and potential surgical interventions.

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

Template: 'Patient diagnosed with arteriosclerotic heart disease based on clinical findings of chest pain and stress test results.'

Template 2

Template: 'Clinical presentation consistent with arteriosclerotic heart disease including exertional angina and risk factors.'

Template 3

Template: 'Diagnostic criteria for arteriosclerotic heart disease met as evidenced by angiographic findings of significant stenosis.'

Template 4

Template: 'Treatment plan initiated for arteriosclerotic heart disease with lifestyle modifications and pharmacotherapy.'

Template 5

Template: 'Follow-up care for arteriosclerotic heart disease including monitoring of blood pressure and lipid levels.'

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 documentation is required for this diagnosis?

Documentation must include patient history, clinical findings, and any diagnostic tests performed.

How does this differ from similar diagnoses?

Differentiation is based on the presence of angina, the type of ischemia, and the patient's clinical history.

What are common billing considerations?

Ensure that the diagnosis is supported by medical necessity and that all relevant codes are included in the claim.

What procedures are typically associated?

Commonly associated procedures include cardiac catheterization, stress testing, and echocardiography.

Are there any quality reporting implications?

Quality measures may include tracking blood pressure, cholesterol levels, and adherence to treatment protocols.