Question: I am billing 11721 with the primary diagnosis 110.1 (Dermatophytosis of nail), and other diagnoses 250.60 (Diabetes mellitus), and 443.9 (Peripheral vascular disease, unspecified). I’m curious why Medicare would require a Q modifier?
Mississippi Subscriber
Answer: Medicare requires a Q modifier to determine the extent and nature of the patient’s health status. If the service involves nail care, then you should append a Q modifier. If it does not qualify then it is probably a cash [...]
