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ICD-10 Guide
ICD-10 CodesI23.7

I23.7

Billable

Postinfarction angina

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

Code Description

ICD-10 I23.7 is a billable code used to indicate a diagnosis of postinfarction angina.

Key Diagnostic Point:

Postinfarction angina refers to chest pain or discomfort that occurs following a myocardial infarction (heart attack). Clinically, it is characterized by episodes of angina that arise due to myocardial ischemia, which can occur as a result of the heart's reduced blood supply following damage from the infarction. The anatomy involved primarily includes the coronary arteries, which may be narrowed or blocked due to atherosclerosis or thrombosis, leading to inadequate blood flow to the heart muscle. Disease progression can vary; some patients may experience recurrent angina episodes, while others may develop more severe complications such as heart failure or arrhythmias. Diagnostic considerations include a thorough patient history, physical examination, and tests such as electrocardiograms (ECGs), stress tests, and imaging studies to assess heart function and blood flow. It is crucial to differentiate postinfarction angina from other causes of chest pain, including unstable angina or non-cardiac conditions, to ensure appropriate management and treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires careful evaluation to distinguish from other cardiac conditions.
  • Treatment complexity: May involve medication management, lifestyle changes, and potential surgical interventions.
  • Documentation requirements: Detailed clinical documentation is necessary to support the diagnosis.
  • Coding specificity: Requires precise coding to reflect the patient's condition accurately.

Audit Risk Factors

  • Common coding errors: Misclassification of angina types or failure to document the postinfarction status.
  • Documentation gaps: Incomplete clinical notes that do not clearly indicate the diagnosis or treatment plan.
  • Billing challenges: Potential denials due to insufficient documentation or incorrect coding.

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

Internal Medicine

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 ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Postinfarction angina has significant clinical implications, as it can indicate ongoing ischemic heart disease and increase the risk of further cardiovascular events. Understanding its prevalence and management is crucial for improving population health outcomes. Quality measures often focus on the timely diagnosis and management of angina to reduce hospital readmissions and improve patient quality of life. Epidemiologically, postinfarction angina highlights the need for effective secondary prevention strategies in patients with a history of myocardial infarction.

ICD-9 vs ICD-10

Postinfarction angina has significant clinical implications, as it can indicate ongoing ischemic heart disease and increase the risk of further cardiovascular events. Understanding its prevalence and management is crucial for improving population health outcomes. Quality measures often focus on the timely diagnosis and management of angina to reduce hospital readmissions and improve patient quality of life. Epidemiologically, postinfarction angina highlights the need for effective secondary prevention strategies in patients with a history of myocardial infarction.

Reimbursement & Billing Impact

Reimbursement considerations include verifying that the diagnosis aligns with the services provided. Common denials may arise from insufficient documentation or incorrect coding, so coders should ensure that all relevant clinical information is included in the medical record. Best practices include using clear and specific language in documentation, ensuring that all procedures are coded accurately, and regularly reviewing coding guidelines to stay compliant with payer requirements.

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 I23.7?

I23.7 covers postinfarction angina, which includes any angina episodes occurring after a myocardial infarction, characterized by chest pain or discomfort due to ischemia.

When should I23.7 be used instead of related codes?

I23.7 should be used specifically when the angina is directly linked to a prior myocardial infarction, distinguishing it from other types of angina such as stable or unstable angina.

What documentation supports I23.7?

Documentation should include a clear diagnosis of myocardial infarction, evidence of recurrent angina episodes, and any relevant test results that support the diagnosis of postinfarction angina.