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v1.0.0
ICD-10 Guide
ICD-10 CodesI51.9

I51.9

Billable

Heart disease, unspecified

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

Code Description

ICD-10 I51.9 is a billable code used to indicate a diagnosis of heart disease, unspecified.

Key Diagnostic Point:

Heart disease, unspecified, is a broad term that encompasses various cardiac conditions that do not have a specific diagnosis. Patients may present with symptoms such as chest pain, shortness of breath, or fatigue. Diagnosis typically involves a thorough clinical evaluation and may include imaging studies. Treatment is based on symptom management and addressing any underlying risk factors.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • patient history
  • symptom presentation

Audit Risk Factors

    Specialty Focus

    Related ICD-10 Codes

    Related CPT Codes

    93306CPT Code

    Clinical Scenario

    Documentation Requirements

    ICD-10 Impact

    Diagnostic & Documentation Impact

    Enhanced Specificity

    ICD-10 Improvements

    Can lead to significant morbidity if not properly managed.

    ICD-9 vs ICD-10

    Can lead to significant morbidity if not properly managed.

    Reimbursement & Billing Impact

    Can lead to significant morbidity if not properly managed.

    Resources

    Clinical References

    • •
      Heart Disease Overview

    Coding & Billing References

    • •
      Heart Disease Overview

    Frequently Asked Questions

    What are the common symptoms of unspecified heart disease?

    Symptoms may include chest pain, fatigue, and shortness of breath.