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Other Insurance/Medicare Claim Submission Instruction Reminders pdf
Connecticut Medicaid (HUSKY Health)·CT·Coding
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid (CMAP) has issued reminders about proper claim submission when patients have other insurance or Medicare coverage. All other insurance benefits must be exhausted before submitting to CMAP, and providers must use CMAP-specific 3-digit carrier codes (including MPA/MPB for Medicare) to avoid claim denials.
Action Required
Immediately: Billing team must verify all Connecticut Medicaid claims with other insurance use CMAP-specific 3-digit carrier codes from eligibility verification responses. For Medicare crossover claims, use carrier codes MPA or MPB (not just MA/MB filing indicators). Update billing system to include appropriate claim adjustment reason codes (CARC) for all crossover claims. Review Chapter 11 of Provider Manual at www.ctdssmap.com for complete submission requirements. Failure to use valid carrier codes will result in EOB denial codes 2515 and 2535.