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Diagnostic coronary angio codes (93454-93461) and injection procedure codes (93563-93564) should not be used with percutaneous coronary revascularization services (92920-92944), when they are used to report: 1 contrast injections, angio, roadmapping, and/or fluor guidance for the coronary intervention 2 vessel measurement for the coronary intervention 3 post-coronary angiop/ stent/ atherectomy angio, as this work is captured in the percutaneous coronary revascularization services codes (92920-92944). Diagnostic coronary angio performed at the time of a coronary interventional procedure may be separately reported only if the following circumstances apply: 1 No prior catheter-based coronary angio study is available, a full diagnostic study is performed, and a decision to intervene is based on the diagnostic angio 2 A prior study is available, but as documented in the medical record: 1 The patient's condition with respect to the clinical indication has changed since the prior study 2 There is inadequate visualization of the anatomy/pathology.