Question: Encounter notes indicate the physician diagnosed a patient with arterial bruit. How do I choose a diagnosis code for this condition? Maine Subscriber Answer: The arterial bruit diagnosis maps to an ICD-10 code that serves at least eight different named conditions. On the claim, you should include R09.89 (Other specified symptoms and signs involving the circulatory and respiratory systems) to represent the patient’s condition. Explanation: ICD-10 instructs coders to use R09.89 whenever you see one of the following conditions documented: