Awareness : Did You Know? 2015-2016

Did You Know? Weekly Educational Series 28

For the Week of March 14, 2016-Surgical Pathology

Immunofluorescence Stains

AMA has added one code for 2016, an add-on code for immunofluorescence stains. This code represents any additional stains that are performed above the initial first stain which is assigned CPT 88346.

The “unit of service” is defined as each additional “single antibody stain procedure” from that designated specimen. It is not solely each additional stain performed, it has to be a separate stain procedure for that given stain, hence the descriptor “single antibody stain procedure.”

Also please note in the parenthetical that the AMA specifically states to not report 88346 and 88350 when the stain performed is a multiplex immunofluorescence stain(s)… it directs to the coder to assign the miscellaneous code 88399.

NOTE that 88350 has a + sign denoting an add-on code and can only be billed when 88346 is also billed.