Can anyone clarify when multiple units of G0452 - physician interpretation and report of molecular pathology procedures - may be reported for Tier 2 molecular pathology codes. Per NCCI manual chapter X, Pathology/Laboratory Services, pg 18:

?One UOS may be reported for each physician interpretation for each separately listed molecular pathology procedure for each distinct source of a specimen. For Tier 2 molecular pathology CPT codes, a physician should not report more than one UOS for each listed molecular pathology procedure on a specimen from a single source?.

For example:

Description CPT
HBA1/HBA2 DUP/DEL ANALYSIS 81404
HB HBB DUP/DEL ANALYSIS 81403
HBB FULL GENE SEQ 81404
PF-MOLECULAR PATH INTERP G0452

In the above example there are three Tier 2 procedures (HBA1/HBA2 and HBB). Assuming medical necessity and all other requirements for reporting are met; if an interpretation is done on each of the three procedures, can the physician charge G0452 x 3 even though it is from the same source? There are three distinct molecular pathology procedures from this single source (2.5ml of blood).