Claim Filing Information - Other Insurance Denial
If the other insurance denied the claim, submit a paper claim and indicate $0.00 as the amount of the other insurance payment. Attach a copy of the denial document from the other insurance.
If the other insurance is an HMSA plan, whether PPO, HMO, or Medicare Advantage, documentation of a denial is not required but HMSA policy information must be provided in the applicable fields of the claim and $0.00 must be indicated as the other insurance payment amount. Claims missing this information will be denied to bill HMSA.
Claim Filing Information - Medicare
If the other insurance is Medicare, submit claims as indicated below:
- Part B claims – submit to Hawaii’s Part B carrier, Blue Cross and Blue Shield of North Dakota. If a patient’s Part B coverage is through one of HMSA’s plans for Medicare beneficiaries, please follow the claims processing directions for the plan.
- Part A claims – submit to Blue Cross of California.
Medicare claims for Durable Medical Equipment (DME) are processed by the Durable Medical Equipment Regional Carrier (DMERC) for Region D - CIGNA.
Providers may choose to opt-out of Medicare by contacting CMS. A copy of this letter must be attached to each claim submission filed by the opt-out provider to HMSA when HMSA is secondary to Medicare. The letter must include the date range of the opt-out period and it must coincide with the service date filed on the claim form.
Modifier GY
This modifier is used when an item or service is statutorily excluded (non-covered by Medicare Statute) or does not meet the definition of any Medicare benefit. Modifier GY is not a guarantee of payment and a copy of the EOMB may still be required.
- Modifier code must present for each service line item that is excluded or not covered by Medicare
- Modifier code can be billed in any position (1-4) on the line-level modifier fields
On the 1500 form, the GY modifier should be billed in field 24D, if applicable.
On the UB04 form, the GY modifier should be billed in field 44, if applicable.
Benefit Payment
Primary payer other than Medicare
Payments for services that are QUEST Integration benefits are coordinated up to 100 percent of the eligible QUEST Integration fee, less the amount of the primary insurance payment. If the primary insurance payment is greater than the QUEST Integration fee, there is no balance for QUEST Integration to pay.
Examples:

*Although the actual payment is $234, the payment deduction is limited to the maximum QUEST allowance.**Even if no QUEST payment is expected, please submit claims/encounter forms for reporting purposes.