Who has to pay after a code 187 denial?

Usually your cost to pay. The letters in front of the number matter: CO (contractual obligation) usually means an in-network provider must absorb it, while PR (patient responsibility) means the plan says you owe it.

How long do I have to appeal?

It depends on your coverage: 180 days for most employer and marketplace plans, 120 days for Original Medicare, about 90 days for Medicaid (varies by state), and only 65 days for Medicare Advantage. Set your deadline clock before you do anything else.

All denial codes · code 187

Denial code 187: what it means — and how to fight it

Denial code 187 (shown on your EOB as CO-187 or PR-187) means: “Consumer Spending Account payments (includes but is not limited to Flexible Spending Account, Health Savings Account, Health Reimbursement Account, etc.).” In plain English: Part of your bill was paid out of your own FSA, HSA, or HRA. That is your money being applied, not a denial.

low appealability Usually your cost to pay

What they're really saying

“Consumer Spending Account payments (includes but is not limited to Flexible Spending Account, Health Savings Account, Health Reimbursement Account, etc.).”

Part of your bill was paid out of your own FSA, HSA, or HRA. That is your money being applied, not a denial.

Your odds

Check the math first — this is usually cost-sharing, not a judgment.

Nothing to appeal — but check that the amount and the account were right.

Fewer than 1 in 100 denied claims are ever appealed. When people do appeal, roughly 4 in 10 win the first round — and independent external review overturns 40–50% of what reaches it.

How to appeal a code 187 denial

Decode. You just did — this page is step one.
Set your clock. 180 days for most employer and marketplace plans, 120 for Original Medicare, ~90 for Medicaid, only 65 for Medicare Advantage.
Urgent? If this is care you still need, call and request an expedited appeal — they must decide within 72 hours.
Match this amount against your FSA or HSA statement for a duplicate draw. Compare the amount to your account statement to make sure the draw is accurate and was not duplicated. If the charge was not an eligible expense, or the account was drawn for a claim your health plan should have paid first, contact the account administrator for a correction — the order of payment matters. Keep the receipt; you may need it to substantiate the expense later.
Send it certified. Letter plus evidence, keep copies of everything.
Escalate. Denied again? Independent external review — a doctor who doesn't work for your insurer decides.

Do it in minutes, free

The AppealClock tool translates your denial, drafts your appeal letter, computes your exact deadline — and watches the clock so you don't have to. No account. Your medical details never leave your device.

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Common questions

What does denial code 187 mean?: Part of your bill was paid out of your own FSA, HSA, or HRA. That is your money being applied, not a denial.
Can I appeal a CO-187 or PR-187 denial?: Yes. Appealing is free and it is your legal right. For this code the odds are low: Nothing to appeal — but check that the amount and the account were right. Fewer than 1 in 100 denials are ever appealed — insurers count on silence.
Who has to pay after a code 187 denial?: Usually your cost to pay. The letters in front of the number matter: CO (contractual obligation) usually means an in-network provider must absorb it, while PR (patient responsibility) means the plan says you owe it.
How long do I have to appeal?: It depends on your coverage: 180 days for most employer and marketplace plans, 120 days for Original Medicare, about 90 days for Medicaid (varies by state), and only 65 days for Medicare Advantage. Set your deadline clock before you do anything else.