Each double-sided, laminated CPT 2018 Express Reference coding card is designed to facilitate proper CPT coding by supplying hundreds of the most commonly reported CPT codes per medical specialty. These easy-to-use reference cards allow health care providers and staff members to easily locate a desired code, which can then be referenced in the CPT codebook. A separate modifiers card lists all modifiers used with CPT and HCPCS codes. Careful analysis of payer data, medical specialty journals, and physician specialty statistics determine which codes are included in this card.