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Z13.6
ICD-10-CM
Stress Test

Find information on Stress Test diagnosis, including CPT and ICD-10 codes, clinical documentation requirements, and healthcare billing guidelines. Learn about cardiac stress testing procedures, nuclear stress tests, exercise stress tests, and stress echocardiography for accurate medical coding and reimbursement. This resource covers key aspects of stress test interpretation, pre-authorization, and medical necessity documentation for physicians and healthcare professionals.

Also known as

Exercise Stress Test
Cardiac Stress Test
Treadmill Test

Related ICD-10 Code Ranges

Complete code families applicable to AAPC Z13.6 Coding
R94.31

Abnormal electrocardiogram [ECG]

Indicates abnormal findings on ECG, often used in stress test result documentation.

I20-I25

Ischemic heart diseases

Stress tests are used to diagnose or assess ischemia, reduced blood flow to the heart.

Z01.810

Encounter for cardiovascular exam

Used for encounters specifically for cardiovascular examination, which may include stress tests.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the stress test for diagnostic purposes?

  • Yes

    Type of stress test?

  • No

    Reason for stress test?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Stress test measures heart function during exertion.
Coronary artery disease (CAD) is narrowing of the heart arteries.
Arrhythmia is irregular heartbeat rhythm.

Documentation Best Practices

Documentation Checklist
  • Stress test CPT code documented
  • Reason for stress test clearly stated
  • Pre-test medications and vitals recorded
  • ECG interpretation and ST changes described
  • Post-test recovery notes and recommendations

Coding and Audit Risks

Common Risks
  • Unspecified Stress Test

    Coding with unspecified stress test codes when more specific documentation exists leads to lower reimbursement and audit risk. CDI can clarify.

  • Stress Test Modifier Errors

    Incorrect or missing modifiers (e.g., -TC, -26) for technical and professional components can cause claim denials. Compliance monitoring is crucial.

  • Unbundling Stress Test Services

    Billing stress test interpretation and other related services separately when a comprehensive code exists poses compliance risks. Coding audits prevent this.

Mitigation Tips

Best Practices
  • Accurate CPT coding for stress tests: 93015-93018
  • Complete documentation of stress test indications, supporting medical necessity
  • Precise ECG interpretation and reporting during stress testing for optimal reimbursement
  • Regular CDI reviews for stress test documentation to meet compliance guidelines
  • Timely physician query process for clarification of stress test documentation

Clinical Decision Support

Checklist
  • Verify patient symptoms: chest pain, shortness of breath
  • Check prior EKG for baseline comparison
  • Confirm informed consent obtained and documented
  • Review medications: beta-blockers, nitrates
  • Monitor vitals pre, during, and post-test

Reimbursement and Quality Metrics

Impact Summary
  • Stress Test Reimbursement: CPT 93015-93018, maximize revenue with accurate coding.
  • Coding Accuracy Impact: Proper modifier use (e.g., -TC,-26) ensures correct claim processing.
  • Hospital Reporting Impact: Stress test data affects quality metrics like cardiac care outcomes.
  • Quality Metrics Impact: Accurate documentation and coding improve hospital performance ratings.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code Stress Test type (exercise,pharm),
  • Document pre/post ECG findings clearly
  • Link diagnosis to Stress Test indication
  • Check payer guidelines for modifiers

Documentation Templates

Stress Test Report:  Patient presented for a cardiac stress test to evaluate chest pain and shortness of breath on exertion.  Indications for testing included atypical chest pain, risk factors for coronary artery disease including hyperlipidemia and family history, and assessment of functional capacity.  The patient underwent a treadmill exercise stress test using the Bruce protocol.  Baseline electrocardiogram (ECG) showed normal sinus rhythm.  Blood pressure and heart rate were monitored throughout the test.  The patient achieved a target heart rate of 85% of the age-predicted maximum.  During the test, the patient reported mild chest discomfort, rated 2 out of 10 on the pain scale.  No significant ST segment changes were observed on the ECG.  The patient was able to exercise for 8 minutes and 30 seconds before stopping due to fatigue.  The test was deemed clinically significant for assessment of coronary artery disease, myocardial ischemia, and exercise tolerance.  Post-exercise ECG and recovery period were unremarkable.  Assessment:  Stress test results are negative for inducible ischemia.  Plan:  Continue current medical management for hyperlipidemia.  Encourage regular exercise and lifestyle modifications for cardiovascular health.  Patient education provided regarding symptom management and follow-up care.  Diagnosis codes:  I20.9 Angina pectoris, unspecified, R07.1 Chest pain on breathing, R06.0 Dyspnea on exertion, I25.10 Atherosclerotic heart disease of native coronary artery without angina pectoris.  Procedure code:  93015 Cardiovascular stress test using treadmill, physician supervision.
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