what does an antinuclear antibodies ifa positive a mean
CPT Code(s) Includes. The ANA Screen,IFA, Reflex Titer/Pattern,and Reflex to Multiplex 11 Ab Cascade begins with an ANA Screen, IFA. If ANA Screen, IFA is positive, then ANA Titer and Pattern will be performed at an additional charge (CPT code(s): 86039). Additionally, five antibodies will be performed at an additional charge: dsDNA (CPT code(s): 86225), Sm/RNP (CPT code(s): 86235), RNP (CPT code(s): 86235), Sm (CPT code(s): 86235), and Chromatin (CPT code(s): 86235).