Look at modifier -KX.
From CMS: For Part B claims processing, the KX modifier shall be billed on the detail line with any procedure code(s) that are gender specific. The definition of the KX modifier is: Requirements specified in the medical policy have been met. Use of the KX modifier will alert the MAC that the physician/practitioner is performing a service on a patient for whom gender specific editing may apply, but should have such editing by-passed for the beneficiary. The CWF shall override any gender specific edits for procedure codes billed with the KX modifier and allow the service to continue normal processing.