Special research billing requirements; codes; and What happens if the Z00.6 diagnosis code is placed in the secondary position when billing for routine clinical research study-related services rendered to a healthy control group volunteer?Healthy control group volunteers participating in a clinical research study, by definition, do not have any underlying medical conditions. Therefore, placing the Z00.6 diagnosis code in the secondary position and a disease diagnosis in the primary position on the claim may affect the patient’s medical history and possibly the future medical treatment the patient will receive.16 | |
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