Additional Laboratory Codes to be Billed with Modifier QW

Effective for dates of service on or after May 1, 2009, the following CPT-4 codes can be billed with modifier QW (CLIA waived test), indicating that the provider has a current CLIA Certificate of Waiver on file with the California Department of Public Health (CDPH), Laboratory Field Services and Medi-Cal Provider Enrollment Division and is using a CLIA-approved test kit:

• 80047
• 80048
• 80051
• 80053
• 80178
• 82042
• 82150
• 82247
• 82310
• 82330
• 82374
• 82435
• 82565
• 82977
• 83520
• 83655
• 83721
• 83880
• 84075
• 84132
• 84157
• 84295
• 84520
• 84550
• 87807
• 87809
• 87899