I've never had to become involved with CPT codes before until I was asked by our Billing department to resolve a couple of questions.

Code #86885 (Anti-human globulin test, indirect, qualitative, each antiserum) seems to refer to an antibody screen or red cell antigen typing, however #86850 is an Antibody Screen and #86905 and #86906 seem to cover antigen typing. And what's with the "each antiserum" for #86885?

Code #86886 (Anti-human globulin test, indirect, titer, each antiserum) seems to refer to a Coombs titer. But what's with the "each antiserum"?

Any assistance would be appreciated.

I am sorry that I did not see your question earlier, this is my take on it

86880 is for the DAT test, we do an AHG (IAT) method on adults. If this is positive we then do IgG and C3 and change an addition 86880 for each antiserum used.

So on someone who's DAT is positive and AHG, IgG and C3 is run then 3 charges of 86880 can be done.

For units screen for antigens 86903 is used.

For patients screen for antigens 86905 is used.

86906 could be used for a complete Rh phenotyping (E,e,C,c typing)