What is the ICD-10 code for Computed Tomography Angiography (CTA) of the coronary arteries for screening purposes?

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Last updated: April 10, 2025View editorial policy

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From the Research

The ICD-10 code for CTA coronary artery screening is Z13.6, which represents "Encounter for screening for cardiovascular disorders." This code is appropriate when a patient undergoes a coronary CT angiography (CTA) for screening purposes rather than for diagnostic evaluation of symptoms. When documenting this procedure, it's essential to note that this code specifically applies to asymptomatic screening examinations. If the patient has symptoms or a known cardiac condition that prompted the CTA, a different code reflecting the specific condition being evaluated would be more appropriate. Additionally, procedure codes (CPT codes) would need to be included separately to fully document the CTA procedure itself. Insurance coverage for coronary CTA screening varies by payer, so verification of coverage is recommended prior to scheduling the procedure to avoid unexpected patient financial responsibility 1.

Some key points to consider when using this code include:

  • The patient must be asymptomatic, meaning they do not have any symptoms of coronary artery disease 2.
  • The CTA must be performed for screening purposes, rather than for diagnostic evaluation of symptoms 3.
  • The code Z13.6 is specific to encounters for screening for cardiovascular disorders, and should not be used for other types of screenings or evaluations 4.
  • The use of CTA for coronary artery screening has been shown to be effective in detecting coronary artery disease and predicting major adverse coronary events 5.

It's also important to note that the use of CTA for coronary artery screening is not without controversy, and some studies have raised concerns about the potential risks and limitations of this approach 4. However, overall, the evidence suggests that CTA can be a useful tool for detecting coronary artery disease and improving patient outcomes, and the code Z13.6 is an appropriate way to document this procedure in asymptomatic patients 1.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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