Q: The influenza virus vaccine represented by CPT® code 90674 (influenza virus vaccine, quadrivalent [ccIIV4], derived from cell cultures, subunit, preservative and antibiotic free, 0.5 mL dosage, for intramuscular use) was approved under the Medicare program as of August 1. However, our claims are kicking back when we report the code. Has there been a change?