Example 1 in the RFI request is the correct way to submit a secondary claim when the primary payer split a service line. There must be one Line Adjudication Information 2430 loop for each split line as adjudicated by the previous payer. The sum of the split line SVD02 payment amounts plus all CAS adjustment amounts in both 2430 loops must add up to the original charge for the line, which would be in the SV102.

In terms of the example in the RFI, the SV1 and applicable 2430 segments would appear as follows:

SV1*HC:A7005:NU*91.73*UN*2***1~

SVD*19003*25.87*HC:A7005:NU**1*1~

CAS*CO*45*13.52~

CAS*PR*2*6.47~

SVD*19003*10*HC:A7005:NU**1*1~

CAS*CO*150*35.87~

The requestor's compliance checker may be confused due to section 1.4.4.2 in the 837 Implementation Guide that explains balancing for service lines. That section does not address the situation where a line is split or unbundled; although, there is a valid example showing the coding of unbundled lines in section 1.4.1.4. The effect of split and unbundled lines will be added to the balancing section in the next version of the guide.