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v1.0.0
ICD-10 Guide
DiagnosesHeart Transplant

Heart Transplant

ICD-10 Coding for Heart Transplant(T86.21, Z94.1)

PRIMARY SPECIALTYCardiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Heart Transplant?
Essential facts and insights about Heart Transplant

Key Clinical Considerations:

  • Severe heart failure symptoms (e.g., dyspnea, fatigue, edema)
  • Echocardiogram showing reduced ejection fraction
  • Elevated BNP levels
  • Physical exam may reveal jugular venous distension, crackles in lungs, and peripheral edema

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of heart disease and previous treatments
  • Assessment of functional capacity (e.g., NYHA classification)
  • Details of pre-transplant evaluations (e.g., cardiac catheterization results)
  • Documentation of contraindications for transplant

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding heart failure versus transplant status.
  • Common errors include misclassifying heart failure types and not documenting prior treatments.

Code Exclusions

Important Exclusions

  • Acute myocardial infarction
  • Congenital heart defects
  • Alternative codes for heart failure not requiring transplant

Related ICD-10 Codes

Primary Codes
Z94.1
Heart transplant status
I50.9
Heart failure, unspecified
Ancillary Codes
I50.9
Differential Codes
T86.22
T86.22
when there is evidence of graft failure without rejection.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

  • Patients with end-stage heart disease
  • Cardiology clinics, transplant centers, and hospitals

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

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 are the documentation requirements?

Comprehensive patient history, assessment of heart failure severity, and details of transplant eligibility.

What are the billing considerations?

Ensure accurate coding of transplant status and related complications; verify payer-specific guidelines.