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Medicare Secondary Payer (MSP) Determination Engine

Failing to properly sequence Medicare primary vs secondary billing triggers False Claims Act audits, drastic recoupments, and CO-22 denial sweeps. Walk through statutory CMS rules to determine exact payer order, generate 837P Loop 2320 electronic segments, and verify conditional payment rights.

CMS Medicare Secondary Payer (MSP) Statutory Rulebook

Medicare Secondary Payer (MSP) Determination Engine

Determine statutory primary vs secondary payer order pursuant to Section 1862(b) of the Social Security Act. Generate ANSI X12 837P Loop 2320 electronic crossover segments and eliminate CARC CO-22 coordination denials.

CMS Post-Payment Recoupment Risk: Inappropriate billing of Medicare as primary when an Employer Group Health Plan, Workers' Comp, or No-Fault insurer is primary triggers automatic False Claims audits, mandatory refunding with statutory interest, and immediate downstream CARC CO-22 denial sweeps.

MSP Clinical Intake Questionnaire

Statutory DeterminationMSP Code: 12
PRIMARY PAYER:
Employer Group Health Plan (EGHP)
SECONDARY PAYER:
Medicare
ANSI X12 837P Electronic Coordination Mapping:
Loop 2320 SBR05=CI/EP, SBR09=12. Patient or spouse employment status verified.
Statutory Citation:

Section 1862(b)(1)(A) of the Social Security Act & 42 CFR § 411.170

Aethera Billing Action:Bill commercial EGHP first. If Medicare is mistakenly billed primary, claim will be rejected with CARC CO-22.
Complimentary Practice Audit

Schedule a 50-Claim MSP Secondary Coordination & CO-22 Audit

Our certified billing compliance specialists audit 50 Medicare claims to eliminate CO-22 coordination of benefit rejections, recover uncollected secondary balances, and insulate your practice from CMS False Claims recoupments.

100% HIPAA compliant. Direct response from certified AAPC / AHIMA compliance specialists.

Next Step For Your Practice

Turn these MSP Determination Engine insights into recovered cash

Struggling with CARC CO-22 coordination denials or uncollected secondary balances? Aethera's billing specialists automatically capture patient MSP questionnaires, verify employer size thresholds, and transmit electronic secondary crossover claims with 99.2% clean claim acceptance. Let our senior AAPC-certified billing team audit 50 of your active claims or past denials — completely free, with guaranteed under-48-hour findings.

Free 50-Claim Audit Pilot

Test our scrub rules and appeal workflow on 50 real claims. Zero commitment, no credit card required.

Instant A/R Gap Analysis

Upload your aging report for instant benchmark comparisons against MGMA standards and recoverable cash projections.

98%+ Clean Claim Rate <24h Submission SLA HIPAA BAA Provided

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