Can DAT be billed for AHG, IgG and C3, if DAT is positive? Can 86880 be used for all 3?

On 1/10/2025 at 8:15 AM, sunshine said:

Can DAT be billed for AHG, IgG and C3, if DAT is positive? Can 86880 be used for all 3?

I think it depends on what is the actual test ordered. Is it a DAT/IgG , or a POLY/DAT with both IgG and C3?  If positive, charge for the cost of the test ordered by the health care provider. 

POLY/DAT with both IgG and C3

Yes, you can bill for all three if needed.  We perform the poly DAT first, then follow-up with the IgG and C3b/d if positive, charging for each DAT performed.  The cpt code 86880 has an CMS MUE limit of 3 charges per date of service, so this follows those rules.

Thank you! Much appreciated