Using CPT code G2211 will cause claims to deny and create balance billing concerns. Learn more

The TRICARE East Region payer ID is TREST.

The payer ID will need to be placed in the following data elements within your X12 837 claim files: ISA-08, GS-03, NM1-09 (with 40 qualifier).

Claim processing

TRICARE requires providers to file claims electronically with the appropriate HIPAA-compliant standard electronic claims format

All claims must be submitted electronically in order to receive payment for services. 98% of claims must be paid within 30 days and 100% within 90 days. All claims for benefits must be filed no later than one year after the date the services were provided.

Electronic claims Audits OHI NPI issues

I have a clearinghouse

Providers who use clearinghouses to process their claims need to enroll via Electronic Data Interchange (EDI) express enrollment in order to process claims and set up EFT/ERA.

To set-up EDI, providers (or groups where applicable):

  • Must enroll for electronic claims submission
  • Must sign, and have on file, a Trading Partner Claims Agreement (“Agreement”) prior to submission of electronic claims
  • Must complete a self-registration process that includes an initial registration and the necessary request forms and business agreement(s)
  • Should sign up for EFT/ERA to ensure faster payment

Enroll now

I do not have a clearinghouse

Providers who do not use a clearinghouse to process their claims can submit claims through provider self-service.

Claims audit process

Per TRICARE policy, Humana Military is required to review and implement claim auditing software to ensure correct code processing on claims. As claims process, the coding is compared to the National Correct Coding Initiative Edits available through a third party vendor and will indicate the error rejecting the line of the claim with a reason code or message.

The TRICARE East Region uses a claims auditing tool to review claims on a prepayment basis. This auditing tool is an automated clinical tool that contains specific auditing logic designed to evaluate provider billing for CPT coding appropriateness and to monitor overpayment on professional and outpatient hospital service claims. Humana Military updates the claims auditing tool periodically with new coding based on current industry standards. Follow CPT coding guidelines to prevent claims auditing editing from resulting in claim denials. Claims auditing edits will be explained by a message code on the remittance advice.

The auditing tool also includes, but is not limited to, the following edit categories*:

  • Age conflicts
  • Alternate code replacements
  • Assistant surgeon requirements
  • Cosmetic procedures
  • Duplicate and bilateral procedures
  • Duplicate services
  • Gender conflicts
  • Incidental procedures
  • Modifier auditing
  • Mutually exclusive procedures
  • Preoperative and postoperative auditing billed
  • Procedure unbundling
  • Unlisted procedures

*The complete set of code edits is proprietary and, as such, cannot be released to the general public.

Providers disputing the reject or denial of services based on auditing can correct and resubmit under "corrected claim" with supporting documentation on a claim-by-claim basis. Please use these guidelines for reconsideration with a corrected claim.

View reconsideration tipsheet

TRICARE and Other Health Insurance (OHI)

TRICARE is the secondary payer to all health benefits and insurance plans, except for Medicaid, TRICARE supplements, the Indian Health Service and other programs or plans as identified by the Defense Health Agency (DHA).

If the OHI benefits are exhausted, TRICARE becomes the primary payer, and additional referral/prior authorization requirements may apply. Since OHI status can change at any time, always ask all beneficiaries about OHI, including National Guard and Reserve members and their families.

Beneficiaries may not waive benefits from their primary plan. If the primary plan provides benefits for services, a claim should be filed with the double coverage plan.

Rendering providers MUST be TRICARE-certified for TRICARE to pay up to the TRICARE Maximum Allowable Charge (TMAC) on covered services.

Submitting claims with OHI

To avoid a delay in claim payment or a recoupment when OHI is uncovered, we recommend asking beneficiaries for all forms of insurance before they are seen at your office or facility. Laws for commercial plans vary by state, so supplying us with all initial information helps to ensure correct and timely processing.

If a beneficiary’s OHI status changes, update patient billing system records to avoid delays in claim payments. The beneficiary is responsible for contacting TRICARE to add, remove or change their OHI by utilizing the TRICARE OHI Questionnaire. If a claim is processed with OHI, and the beneficiary has contacted TRICARE to remove it, the OHI will automatically be added back to the beneficiary's account and the claim will deny causing a delay in payment.

If a provider indicates that there is no OHI, but Humana Military's files indicate otherwise, a signed or verbal notice from the beneficiary will be required to inactivate the OHI record.

In some cases, the TRICARE Summary Payment Voucher/Remit will state, "Payment reduced due to OHI payment," and there may be no payment and no beneficiary liability. The TRICARE cost-share (the amount of cost-share that would have been taken in the absence of primary insurance) is indicated on the TRICARE Summary Payment Voucher/Remit only to document the amount credited to the beneficiary's catastrophic cap.

Dual eligible beneficiaries with OHI

If the beneficiary has OHI as well as Medicare and TRICARE, TRICARE will pay after Medicare and the OHI. Once Medicare and the OHI have processed the claim, the beneficiary should file a TRICARE claim with WPS.

Identify OHI in the claims form

  • Mark "Yes" in box 11d (CMS-1500) or FL 34 (UB-04)
  • Indicate the primary payer in box 9 (CMS-1500) or FL 50 (UB-04)
  • Indicate the amount paid by the other carrier in box 29 (CMS 1500) or FL 54 (UB-04)
  • Indicate insured's name in box 4 (CMS-1500) or FL 58 (UB-04)
  • Indicate the allowed amount of the OHI in FL 39 (UB-04) using value code 44 and entering the dollar amount

Referrals and authorizations

TRICARE beneficiaries who have OHI do not need referrals or prior authorizations for covered services except for those services listed below, which require prior authorization even when OHI coverage exists.

  • Adjunctive dental care
  • Advanced life support air ambulance in conjunction with stem cell transplantation
  • Applied Behavior Analysis (ABA)
  • Extended Care Health Option (ECHO) services
  • Home health services, including home infusion
  • Hospice
  • Laboratory Developed Tests (LDT)
  • Transplants (solid organ and stem cell, not corneal transplant)
  • Autism Care Demonstration (ACD)
  • Electroconvulsive Therapy (ECT)
  • Non-emergency admissions, to include detoxification and rehabilitation services
  • Psychoanalysis
  • Residential Treatment Centers (RTC)
  • Transcranial Magnetic Stimulation (TMS)

National Provider Identifier (NPI) issues

Claims will be rejected if the NPI is not present in the correct location on the claim form or if there is a mismatch between the information in the National Plan and Provider Enumeration System (NPPES) and our claims system (claims for Corporate Service Providers (CSP) are the exceptions). 

NPI in wrong location on the claim form

To correct the issue, include the rendering provider NPI in the correct location on the claim form and contact your clearinghouse to ensure they are placing it in the correct location.

Mismatch of information

If there is a mismatch, call NPPES at (800) 465-3203 to update your information. NPPES is used as the resource for validating NPI data, so it is important that providers review their NPPES records for accuracy. The NPPES resourced data will be updated monthly, by the 22nd of each month. 

Edits for 837 professional claims 

Edits will be applied to 837 professional claims only when: 

  • NPI in billing and/or rendering provider segment(s) is valid 

A billing NPI is submitted in NM109 of the 2010AA Billing Provider Loop, with place of service 11 (office) only if: 

  • The NPI submitted is a Type 1, then the sole proprietor field must be a Yes 
    The NPI submitted is a Type 2, then the rendering provider segment must be submitted in Loop 2310B or 2420A

Note: The rendering provider NPI will not be required at this time, but the segment must be provided with the rendering provider name.

As a reminder, the billing provider Address Loop 2010 must have a physical address. If the services rendered were not at this address, then the Service Facility Loop 2310C must be submitted. If there is more than one service facility for the claim, then use the Service Facility Loop 2420C.

Error messages on 277CA claims acknowledgment and suggested resolutions

STC*A7:562:85—Invalid billing NPI
Verify the billing provider NPI is valid; if valid, verify it is active on NPPES

STC*A8:562:85—Invalid billing provider relationship
Verify the billing provider is a solo practitioner or an organization
If the billing provider is a member of a group, the group’s information, including NPI, should be in the 2010AA; and rendering provider information in 2310B or 2420A
If you are a solo practitioner, update your NPPES record

STC*A8:562:82—Invalid rendering provider relationship
Verify that the rendering provider NPI is present
Rendering provider is required for taxonomy codes multi-specialty—193200000X and single specialty —193400000X

STC*A7:562:82—Verify the rendering provider NPI is valid
If valid, verify it is active on NPPES

*Claims may have previously pended and processed (including payment)