Timely filing · commercial (Highmark BCBSD, Delaware)
Highmark Delaware timely filing limit
Short answer
The Highmark Delaware timely filing limit can be no shorter than 180 days from the date of service, in network or out, because Delaware law requires every carrier it regulates, Highmark BCBSD included, to give providers at least that long to submit a claim. Your Highmark agreement can allow longer.
The rule does not reach Medicare, Medicaid, CHIP or other government plans, so Highmark Medicare Advantage claims fall outside it. Highmark has 30 days to act on a clean claim, and once it issues a final reimbursement decision you have 60 days from receipt to petition the Delaware Insurance Department for arbitration. Compare other payers in the timely filing limits table.
Last reviewed by the Remitwright billing team. Editorial policy
The windows
- Initial claim
- 180 days from the date of service at minimum, in or out of network, under Delaware law; your Highmark agreement can allow longer1
- Counted from
- The date the covered service was rendered. The statute sets no separate clock for secondary claims. The arbitration window runs from the day you receive Highmark's final reimbursement decision, and an audit appeal from the day you receive the audit result letter.
- Appeal
- The Delaware statutes and regulations cited here do not set an internal appeal window for Highmark; check your Highmark agreement and provider manual for one. After Highmark's final reimbursement decision, you have 60 days from receipt to petition the Delaware Insurance Department for arbitration.
- Verified
- , against the payer document in the sources
Your participation agreement can set a different window. Where the contract and the manual disagree, the contract applies.
A visit on Monday, March 2, 2026
Counting 180 days forward from a date of service of Monday, March 2, 2026 gives Saturday, August 29, 2026. That is the last day to file under the first limit shown above; a claim filed after it is outside the window unless one of the exceptions below applies.
Exceptions the payer allows
Medicare, Medicaid and other government plans
Delaware's 180-day rule defines a carrier to exclude plans for people eligible for Medicare, Medicaid or CHIP and other state or federal government plans. Highmark Medicare Advantage claims and Delaware Medicaid managed care claims follow those programs' own filing rules, not this floor.
An agreement that allows more than 180 days
The statute sets a floor, not a ceiling. It says a contract that stops claims at the 180-day minimum does not violate the law, so any window longer than 180 days has to come from your Highmark agreement. Read it before you treat day 180 as the last day.
Audits after payment
When Highmark audits paid claims, Delaware caps a records request at 400 claims for one episode of care in a 45-day period, gives you 45 to 60 days from the letter to send the records, and 30 to 60 days from receipt of the result letter to appeal. These limits do not apply to fraud audits, audits a self-insured plan asks for, or government audits.
Secondary claims
Delaware requires a carrier to accept primary and secondary claims electronically from any provider, in or out of network. The 180-day floor counts from the date of service for both, so send the primary claim early enough to leave time for the secondary.
What counts as proof of timely filing
- The electronic acknowledgement for each claim, which Delaware law requires a carrier to send no later than 2 business days after it receives an electronic claim
- For an arbitration petition, Highmark's written final reimbursement decision with its notice of your right to arbitration, and the date you received it
- For an audit appeal, the audit result letter and the date you received it, since your 30 to 60 days run from receipt
Notes for billers
- Within 30 days of receiving a clean claim, Highmark must pay it, pay the payable part and explain the rest in writing, deny it in writing with the reason, or ask in writing for specific information about that claim. It gets one such request per claim and must act within 15 days of receiving the information, with one further request allowed only to coordinate benefits or to check for a duplicate (Regulation 1310).
- A clean claim under Regulation 1310 is a complete CMS-1500 or institutional UB form on paper, or an 837 in the HIPAA standard format. A claim that repeats a service already billed for the same patient and date is a duplicate, not a clean claim, and an unspecified or miscellaneous code needs supporting documentation.
- Three failures to meet the 30-day rule within 36 months create a presumption of an unfair practice, the Commissioner may order interest on a late claim, and a contract cannot waive the regulation.
- Any final reimbursement decision that does not pay your full charge must carry a written notice of your right to arbitration. The filing fee is $50 for a claim of $1,000 or less and $100 otherwise, the carrier answers within 20 days, and the arbitrator decides within 45 days of the petition.
- Delaware also requires a carrier to let you receive electronic remittance advice (835 files) once you complete the agreements the carrier requires.
- Delaware's 2024 examination report describes Highmark BCBSD Inc. as a health service corporation licensed in Delaware only, selling PPO, EPO and Medicare Advantage coverage and also processing claims for large self-insured accounts. Confirm the plan type on the member's card before you rely on a Delaware rule, and use the Highmark Provider Manual and your agreement for Highmark plans in other states.
FAQ
Questions about Highmark Delaware deadlines
What is the Highmark Delaware timely filing limit?
Does the 180-day rule cover Highmark Medicare Advantage claims?
How fast must Highmark act on a clean claim in Delaware?
What can I do if I disagree with what Highmark paid?
How long do I have to answer a Highmark audit records request?
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