Healthcare providers must submit their Medicare Secondary Payer (MSP) claims electronically unless they meet one of the following exceptions:
Effective October 1, 2005, electronic MSP claims must comply with all 12X 837 Version 4010A1 implementation guide requirements, and include standard claim adjustment reason codes to describe adjustments that a primary payer made during adjudication.
It is the provider’s responsibility to convert local adjustment reason codes or messages into appropriate standard CAS codes, along with other loops, segments, and data elements that apply prior to transmission. A list of all American National
Standards Institute (ANSI) reason codes are available online at http://www.wpc-edi.com/.
| LOOP 2320 – (This is the header field for MSP information) |
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Segment SBR01 = Primary Payer Responsibility (P) |
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Segment SBR02 = Self Relationship (18) (Only required if patient relationship is self) |
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Segment SBR03 = Insured Group or Policy Number |
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Segment SBR04 = Insured Group Name |
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Segment SBR05 = Other Insurance |
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Segment SBR09 = Claim Filing Indicator Code |
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Segment DMG02 = Subscribers Date of Birth |
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Segment DMG03 = Male or Female |
| LOOP 2330A – (Subscriber information) |
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Segment NM101 = Insured or Subscriber (IL) |
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Segment NM102 = Person (1) |
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Segment NM 103 = Last/Organization Name |
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Segment NM104 = First Name |
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Segment NM105 = Middle Name (Middle initial) |
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Segment NM 108 = Member Identification Number (MI) |
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Segment NM109 = Identifier (Policy Number) |
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Segment N301 = Address Line (Subscriber’s address) |
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Segment N401 = City Name (Subscriber’s city) |
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Segment N402 = State Name (Subscriber’s state) |
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Segment N403 = Zip Code |
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| LOOP 2330B – (Other payer information) |
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Segment NM101 = Payer (PR) |
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Segment NM102 = Non-Person Entity (2) |
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Segment NM103 = Last/Organization Name (Name of primary insurer) |
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Segment NM108 = Payer Identification (PI) |
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Segment NM109 = Identifier (Medigap Inkey code) (If no Medigap Inkey code, we recommend including the insurer’s address in this field) |
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| LOOP 2400 – (Service line) |
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Segment AMT01 = COB Approved Amount (AAE) |
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Segment AMT02 = Monetary Amount (What the primary allowed for the service billed) |
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Segment CN101 = Other Contract (09) (Obligated to accept indicator) |
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Segment CN102 = Contract Amount (The amount that you are obligated to accept) |
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| LOOP 2430 – (Line adjudication information) |
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Segment SVD01 = Other Payer Primary Identifier (This number
should match NM109 in Loop id 2330B Identifying Other Payer) |
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Segment SVD02 = Service Line Paid Amount (What the primary paid for this service reported in LOOP 2400) |
| CAS Segments are where the reason codes of the primary insurers will explain how they processed the claim. |
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No Contractual Obligation |
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CAS01 = Patient Responsibility Adjustment (PR) |
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CAS02 = Reason Code (ANSI) |
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CAS03 = Adjustment Amount |
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Contractual Obligation |
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CAS01 = Contractual Obligation Adjustment (CO) |
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CAS02 = Reason Code (ANSI) |
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CAS03 = Adjustment Amount |
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CAS01 = Patient Responsibility Adjustment (PR) |
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CAS02 = Reason Code (ANSI) |
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CAS03 = Adjustment Amount |