Coronary circulation dominance is looking to capture the greater contributor to the perfusion distribution of the inferior surface of the left ventricle. Patients that arrive for a coronary catheterization will more often than not have different coronary anatomy. This data element can reflect that concept by looking at the posterior descending artery origin and distribution. If the posterior descending artery and posterolateral artery arise from the left circumflex, you would capture this as left and vice versa. Codominant captures a distribution where the posterior descending artery arises from the right and the posterolateral artery arises from the left, creating an equal distribution of the inferior surface of the left ventricle. Sequence 7500 coronary circulation dominance can be coded based on descriptive documentation that meets the definitions found in the data dictionary or on physician documentation alone, such as the patient is left dominant, decoded as left. Because dominance does not change, the registry will accept the value that is acceptable to code sequence 7500 from information found in a medical medical record that is greater than 30 days prior to the procedure. The only exception to this rule is that if the patient has a history of a heart transplant, we want sites to ensure that they're reflecting dominance as reflected in the new heart.

coronary circulation dominance

posterior descending artery

left ventricle perfusion

coronary anatomy variations

heart transplant history