Central States Indemnity (CSI)

Primary payer ID: Compare transaction IDs ↓

Last successful claim statusNo successful response observedObserved across Substrate's claim-status network.

Currently not answeringEDI 270/271

Coverage profile

Work Central States Indemnity (CSI) across every published route

Use the current payer record to choose the right claim-status, eligibility, portal, phone, or appeals workflow. Substrate only marks routes that are published for this payer.

Eligibility

EDI 270/271

The Substrate Eligibility Agent can verify patient benefits, identify TPAs and carve-outs, and more with Central States Indemnity (CSI).

Available

Other aliases

Also known as

CTLST

Frequently asked questions

Central States Indemnity (CSI) payer FAQs

What is the payer ID for Central States Indemnity (CSI)?

The primary payer ID for Central States Indemnity (CSI) is CTLST. The correct routing ID can differ by clearinghouse and transaction, so compare the 837P, 837I, 835, 270, and 276 entries before submitting.

Routing reference

Central States Indemnity (CSI) payer IDs and operating states

Use the payer ID listed for the transaction you are submitting. Verify current routing and enrollment requirements with your clearinghouse.

Central States Indemnity (CSI) payer name, operating states, and transaction-specific payer IDs
Payer name	Central States Indemnity (CSI)Source: Substrate payer directory · last refreshed Sep 22, 2026

Routing sources and verification

Substrate payer directoryPayer identity, aliases, operating states, and vendor IDs. Last refreshed Sep 22, 2026.

Clearinghouse payer IDs are transaction-specific and can change. Confirm the current payer list and the member’s ID card before submission.

Disclaimer

The information provided on this page is for general informational purposes only and does not constitute billing, coding, or reimbursement advice. Nothing on this page should be relied upon as a substitute for clinician assessment, professional billing guidance, or as a definitive statement of any payor's billing requirements or policies.

Payor agreements, fee schedules, and billing policies vary and are subject to change. Before submitting any claims related to maternity care services — including claims affected by the 2027 CPT code revisions — providers should consult the applicable payor agreements, coverage policies, and billing guidelines to confirm current requirements for their specific payor contracts.

Substrate makes no representation or warranty regarding the accuracy, completeness, or timeliness of the payor-specific information presented here. Providers are solely responsible for ensuring that all claims are submitted in accordance with applicable payor requirements, and Substrate assumes no liability for claim denials, underpayments, or other adverse outcomes arising from reliance on this information.