ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 9: Diseases of the circulatory systemI27

I27

Non-billable

Other pulmonary heart diseases

Chapter 9:Diseases of the circulatory system

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 I27 is a used to indicate a diagnosis of other pulmonary heart diseases.

Key Diagnostic Point:

I27 encompasses a variety of pulmonary heart diseases that are characterized by the involvement of the right side of the heart due to pulmonary hypertension or other pulmonary conditions. Clinically, patients may present with symptoms such as dyspnea, fatigue, chest pain, and palpitations. The anatomy involved primarily includes the right ventricle, pulmonary arteries, and the lungs. Disease progression can lead to right ventricular hypertrophy and eventual heart failure if left untreated. Diagnostic considerations include echocardiography, right heart catheterization, and imaging studies to assess pulmonary pressures and cardiac function. Conditions such as chronic obstructive pulmonary disease (COPD), interstitial lung disease, and pulmonary embolism can contribute to the development of pulmonary heart disease, necessitating a comprehensive evaluation of the patient's respiratory and cardiovascular status.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misclassification of pulmonary hypertension types.
  • Documentation gaps may arise from insufficient detail on the underlying pulmonary conditions.
  • Billing challenges can occur if the relationship between pulmonary disease and heart conditions is not clearly established.

Specialty Focus

Medical Specialties

Cardiology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Pulmonology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of I27 lies in its association with increased morbidity and mortality in patients with pulmonary heart disease. Understanding this condition is crucial for improving population health outcomes, as it often leads to hospitalizations and increased healthcare utilization. Quality measures related to the management of pulmonary heart disease can enhance patient care and reduce healthcare costs, emphasizing the importance of accurate coding and documentation in this area.

ICD-9 vs ICD-10

The clinical significance of I27 lies in its association with increased morbidity and mortality in patients with pulmonary heart disease. Understanding this condition is crucial for improving population health outcomes, as it often leads to hospitalizations and increased healthcare utilization. Quality measures related to the management of pulmonary heart disease can enhance patient care and reduce healthcare costs, emphasizing the importance of accurate coding and documentation in this area.

Reimbursement & Billing Impact

Reimbursement considerations include the need for comprehensive evaluations and potential treatments such as medications for pulmonary hypertension. Common denials may arise from insufficient documentation linking the pulmonary condition to heart disease. Best practices include ensuring all relevant tests and evaluations are documented and coded accurately to reflect the complexity of the patient's condition.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by I27?

I27 covers conditions such as pulmonary hypertension due to left heart disease, pulmonary hypertension due to lung diseases, and chronic thromboembolic pulmonary hypertension. Each condition has specific diagnostic criteria that must be met for accurate coding.

When should I27 be used instead of related codes?

I27 should be used when the primary issue is related to pulmonary heart disease resulting from pulmonary conditions, rather than isolated heart conditions or pulmonary embolism, which would be coded under I26 or I28.

What documentation supports I27?

Documentation should include clinical findings, diagnostic imaging results, and any relevant pulmonary function tests that establish the diagnosis of pulmonary heart disease. Clear linkage between pulmonary conditions and heart involvement is essential.