What does PR-204 mean on an EOB?

PR-204 means the service is not covered under the patient's current benefit plan and the patient is responsible for the listed amount. It is a PR (Patient Responsibility) group code, authorizing the provider to bill the patient — but only if proper advance notice of potential non-coverage was given before the service was rendered.

What is the difference between PR-204 and CO-204?

Same CARC (204 = service not covered by plan), different responsibility. PR-204 means the patient is responsible and can be billed. CO-204 means the provider must absorb the write-off — patient billing is prohibited. CO-204 typically appears when the provider's contract excludes the service. Always check the group code (PR vs. CO) before billing any patient for a 204 adjustment.

What is the difference between PR-204 and PR-96?

Both mean the patient owes for a non-covered service and have the same billing response process (verify advance notice, confirm PR group code, bill EOB amount). CARC 96 (non-covered charge) is often used for specific benefit exclusions — a specific service or item not in the plan. CARC 204 (service not covered by plan) is typically used when the service category as a whole is not included in the plan's benefit package. The practical billing actions are the same.

Do I need an ABN for every PR-204 on Medicare claims?

Yes, if Medicare denies the service as non-covered (CARC 204 / PR group) and you did not issue an ABN before the service, you cannot bill the Medicare patient. The ABN (CMS-R-131) must be given before service in enough time for the patient to make an informed decision. Without a signed ABN, bill the Medicare patient for PR-204 is prohibited under CMS rules — absorb the write-off and issue the ABN before future identical services.

What services most commonly generate PR-204?

Common PR-204 situations: adult dental services under most medical plans; routine vision care under non-vision insurance; hearing aids and routine hearing exams under traditional Medicare; weight loss programs (Weight Watchers, Ozempic for non-diabetes without covered criteria); experimental or off-label treatments; cosmetic procedures; services that require specific diagnoses not present (e.g., infertility treatment without a qualifying diagnosis); and acupuncture/chiropractic beyond allowed visit limits.

Can I charge the patient my full billed rate for a PR-204 service?

You may bill only the PR-204 amount shown on the EOB — not your billed charge. In most cases the PR-204 amount reflects the payer's allowed amount (what the patient owes), which may be less than your billed charge because the plan still applies the contracted rate even for non-covered services. Billing the patient your billed charge when the EOB shows a lower PR-204 amount is balance billing. However, for truly non-contracted situations (pure self-pay for services the payer never adjudicates), your billed or self-pay rate may apply — verify whether the payer adjudicated the claim at all.

What if the patient disputes the PR-204 and says they didn't know the service wasn't covered?

This is the most common PR-204 complaint — and it is usually valid when no advance notice was given. If you did not provide a written financial notice or ABN before service, the patient has a legitimate basis to dispute the bill. You may need to write off the balance. Going forward, build a pre-service benefit verification step for every service that commonly generates PR-204 in your practice — notify patients before service, get written acknowledgment, and the dispute risk disappears.

PRPatient Responsibility · CARC Code 204

PR-204

Service Not Covered by Patient's Current Plan

PR-204 means the service the patient received is not included in their current benefit plan, and the patient is financially responsible. You can bill the patient — but only if you informed them before service that the service might not be covered. Without that advance notice, PR-204 becomes an absorbed write-off regardless of the code.

Updated August 2026·Group: PR (patient responsible)·Critical: advance notice required before billing patient

PR-204 in plain English

PR-204 means this service is not included in the patient's benefit package — the patient owes the listed amount. The PR group code confirms patient billing is authorized. The critical qualifier: you can only collect if you told the patient before the service that this service may not be covered. Without documented advance notice, the PR-204 code doesn't protect you — most payers and state patient billing laws prohibit billing patients for non-covered services they weren't warned about.

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Verify PR vs. CO before billing any patient for CARC 204

CO-204 (contractual obligation) means the provider writes it off — patient billing prohibited. PR-204 (patient responsibility) means the patient can be billed. The same CARC 204 number appears in both, but the financial outcome is completely different. Always read the group code first.

Services Commonly Generating PR-204

Benefit exclusions that most frequently produce this code

Adult Dental Services

Most medical health insurance plans do not cover dental — even medically necessary dental related to a health condition. PR-204 is common when dental codes are submitted to medical insurers. Patients need to understand dental benefits are separate before scheduling dental procedures under their medical plan.

Routine Vision Care

Medical plans typically cover ophthalmology for disease (diabetic eye exams, retinal conditions) but not routine refraction and vision correction. PR-204 appears when routine vision services are billed to a medical payer. Verify the specific visit purpose at eligibility — disease management vs. routine care.

Hearing Aids (Traditional Medicare)

Traditional Medicare does not cover hearing aids or routine hearing exams. PR-204 on a Medicare claim for audiological services typically means the exam went beyond the covered diagnostic threshold. ABN required before billing the Medicare patient.

Cosmetic and Elective Procedures

Rhinoplasty, blepharoplasty for cosmetic reasons, elective weight loss surgery below BMI threshold, tattoo removal — these generate PR-204 when submitted to medical payers. Informed consent and financial notice are essential before scheduling.

Experimental or Off-Label Treatments

Some payers exclude treatments that are investigational or used outside FDA-approved indications. PR-204 here often has appeal value — document peer-reviewed literature supporting medical necessity and appeal with clinical evidence.

Acupuncture / Chiropractic Beyond Limits

Many plans cover limited chiropractic or acupuncture visits per year. Once the benefit limit is exhausted, additional visits generate PR-204. Track per-patient visit counts against plan limits and notify the patient before the benefit is exhausted.

Step-by-Step Response

What to do when you receive PR-204

Verify the denial is accurate — payers error on PR-204
Call the payer and confirm: (1) Is this service specifically excluded from this patient's plan? (2) Is there a different diagnosis code or modifier that would make it covered? (3) Is this truly a non-covered service or a medical necessity denial being miscoded as 204? Some payers incorrectly use PR-204 for frequency limit denials (CO-119) or medical necessity denials (CO-50) — those have different responses including appeals. Get the payer to confirm the specific plan exclusion language.
Confirm the group code is PR — not CO
CO-204 means provider write-off, no patient billing. PR-204 means patient billing authorized. This check takes five seconds and prevents balance billing violations. If the group code is CO and you believe the service should be patient-billable (e.g., your contract doesn't exclude it), call the payer to dispute the group code assignment.
Verify advance notice was documented in the patient's record
Before sending any patient statement for PR-204: confirm you have a signed ABN (Medicare) or signed financial notice (commercial) in the patient's chart dated before the service was rendered. If no notice exists, you face a choice: write off the balance and issue the notice before the next similar service, or proceed with billing and risk a patient dispute that results in a write-off anyway plus a complaint.
Send the patient statement with a clear non-coverage explanation
Bill the exact PR-204 EOB amount. Include: "Your insurance plan does not cover [service description]. The amount shown is the insurance-adjudicated patient responsibility. You were informed of this possibility before your service on [date]." Attach or reference the EOB. Never bill the patient your billed charge if the EOB PR-204 amount is lower — the allowed amount is the maximum you may bill even for non-covered services in most contracted situations.
Build pre-service benefit verification for services that routinely generate PR-204
Identify which CPT codes or service types in your practice most frequently generate PR-204 in your payer mix. For each, create a pre-scheduling benefit verification workflow: verify coverage for that service before confirming the appointment, notify the patient of non-coverage risk and estimated cost, and obtain written financial responsibility acknowledgment before the visit. This converts PR-204 from a billing problem into a pre-service patient conversation.

Frequently Asked Questions: PR-204

PR-204 means the service is not covered by the patient's current benefit plan and the patient is responsible for the amount. The PR group code authorizes billing the patient — but only with documented advance notice given before the service was rendered.

Same CARC (204), different responsibility. PR-204 = patient pays (provider can bill). CO-204 = provider write-off (patient billing prohibited). Always verify the group code on the EOB before sending any patient statement for a 204 adjustment.

In practice, no. While the EOB group code PR authorizes billing, most states prohibit billing patients for non-covered services they weren't informed about before service. For Medicare specifically, a valid ABN is legally required. Without documentation of advance notice, patient billing creates dispute and complaint risk that often results in a write-off plus compliance exposure.

Both are patient responsibility codes for non-covered services with the same billing response process. CARC 96 typically identifies a specific non-covered charge or item. CARC 204 typically identifies that the service category itself is not included in the plan's benefit package. The practical billing actions — verify advance notice, confirm PR group code, bill EOB amount — are identical for both.

Sometimes — before billing the patient, consider whether the PR-204 is accurate. Payers occasionally misclassify services as non-covered when coverage exists under a different diagnosis code, modifier, or medical necessity argument. If the service should be covered based on the patient's actual diagnosis and clinical documentation, appeal with clinical records before billing the patient. If the denial is accurate (the service is truly excluded), billing the patient (with advance notice) is the correct next step.

The No Surprises Act (effective 2022) primarily addresses unexpected out-of-network bills, not plan exclusions. However, it reinforced the Good Faith Estimate (GFE) requirement for uninsured and self-pay patients, which includes informing them of anticipated costs. For insured patients, PR-204 billing disputes may invoke state balance billing protection laws — requirements vary by state. When in doubt about whether a PR-204 is billable to the patient, consult your healthcare attorney and review your specific state's patient billing laws.

Related Codes

Codes related to PR-204

Getting PR-204 without prior patient notification? Every one is a potential write-off or complaint.

Non-covered service billing disputes are almost always preventable with a pre-scheduling benefit verification workflow. A free RCM audit identifies which services in your practice routinely generate PR-204, builds the pre-service notification process, and eliminates the surprise billing risk before it reaches a patient statement.

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