PR-35 Denial Code (CARC 35) 2026: Lifetime Benefit Maximum Reached

PR-35 is a lifetime-limit denial. The payer is saying it has already paid the most it will ever pay for this benefit under the plan. Since the Affordable Care Act, this is rare for essential health benefits on regular health plans. You’ll still see it on benefits that aren’t essential health benefits, and on plans outside those rules. Before you bill the patient, check that the limit is allowed. (Primary sources: X12 Claim Adjustment Reason Codes · HealthCare.gov, lifetime and yearly limits).

In brief: PR-35 means “lifetime benefit maximum has been reached.” Ask the payer which benefit hit its limit and how much was paid. If the service is an essential health benefit on an individual or job-based plan, a lifetime dollar limit generally isn’t allowed, so appeal. If the limit is valid, look for other coverage. Bill the patient only after that.

Part of our denial codes library. Written by Manikandan J, CPC, CRCR, who has more than 10 years of US medical billing and revenue cycle experience. Published 20 October 2026. Last updated: 20 October 2026. Code wording is quoted word for word from X12.

X12 wording for CARC 35

Field	Official X12 text
Description	“Lifetime benefit maximum has been reached.”
Start	01/01/1995
Last modified	10/31/2002

Source: X12 Claim Adjustment Reason Codes, checked 20 October 2026.

Denial code 35, CARC 35 and reason code 35

One X12 code, three common names. When you see denial code 35 or reason code 35 in a portal, the remit will also show a group code. With PR-35 the payer assigns the amount to the patient. With CO-35 your contract keeps it with the provider.

PR-35 vs PR-119: lifetime or time period?

	PR-35	PR-119
What the payer says	The lifetime maximum is used up	The maximum for this time period or occurrence is used up
Typical example	A non-essential benefit with a lifetime dollar cap	A yearly visit limit for therapy
Does it reset?	No	Yes, at the next period
First check	Is a lifetime limit allowed on this benefit?	When does the period reset?

Who pays: group code table

Group + CARC	Who carries it	What to know
PR-35	Patient	Billable to the patient if the limit is valid and no other coverage applies.
CO-35	Provider	Contract bars patient billing. Appeal or write off.
OA-35	Not assigned	Check the primary payer’s handling.

CMS describes PR amounts as ones that “may be billed to the patient or insured” (Medicare Claims Processing Manual, Ch. 22, §60.1).

When lifetime limits are still allowed

An essential health benefit is one of the core service groups that ACA plans must cover, such as hospital care, prescription drugs and maternity care.

HealthCare.gov says insurers can’t put a dollar limit on what they spend on essential health benefits while you’re on the plan. It adds that this applies to all individual and job-based plans, even grandfathered ones. Plans can still set lifetime dollar limits on services that aren’t essential health benefits. So a PR-35 on an essential benefit from a regular health plan deserves a hard look.

Common causes of PR-35

Remark wording is from the X12 RARC list. Pairings vary by payer.

Cause	Typical RARC	Fix
Benefit isn’t an essential health benefit and has a lifetime cap	N587	Look for other coverage, then bill the patient.
Plan type falls outside the ACA rules	N587	Confirm the plan type and look for other coverage.
Payer applied a lifetime cap to an essential health benefit	N587	Appeal with the plan type and the benefit category.
Payer counted claims from another member	N587	Ask for the claim history behind the total.
Other coverage should pay first	N23	Bill the other plan and send its remit.

Resolving PR-35 step by step

A lifetime maximum is the most a plan will pay for a benefit over the whole time a person is enrolled.

1. Ask which benefit hit the limit. Get the limit amount and the total paid so far.
2. Check whether the limit is allowed. For example, a cap on an essential benefit from a job-based plan is a red flag.
3. Check the plan type. Ask whether it’s an individual, job-based or other kind of plan.
4. Look for other coverage. A spouse’s plan or Medicaid may pick up the service.
5. Appeal if the limit shouldn’t apply.
6. Bill the patient only when the limit is valid and no other coverage applies.

Appeal approach

Appeal when the service is an essential health benefit on an individual or job-based plan. Quote the HealthCare.gov protection and name the benefit category. Ask the payer to show the plan terms that allow the limit. If the payer added in claims that weren’t this member’s, send the corrected history.

Questions to ask the payer about a PR-35

• Which benefit reached its lifetime maximum, and what’s the limit?
• What’s the total paid toward it, and which claims make it up?
• Is this plan individual, job-based or another type?
• Does the plan treat this service as an essential health benefit?

Worked example (illustrative)

A patient on a job-based plan has a series of infusions. The remit shows CAS*PR*35*2100.00. The biller asks which benefit hit its limit. The payer names a lifetime cap on the drug benefit. Because prescription drugs are an essential health benefit, the biller appeals and quotes the HealthCare.gov rule. Consider the other outcome too. If the service had been outside the essential benefits, the biller would have looked for other coverage before billing the patient.

Prevention checklist

• [ ] Note any lifetime caps found during benefit checks, such as on non-essential benefits.
• [ ] Track the running total for long treatment plans.
• [ ] Record the plan type at registration.
• [ ] Tell patients early when a cap is close.
• [ ] Track PR-35 by payer to spot caps applied wrongly.

Related denial codes

• PR-119: benefit maximum for the time period or occurrence reached.
• CO-96: non-covered charges.
• CO-109: claim not covered by this payer.
• CO-27: expenses incurred after coverage ended.
• PR-1, PR-2, PR-3: deductible, coinsurance and copay.
• Denial codes hub for every code we cover.

Key takeaways

PR-35 means the plan says a lifetime maximum is used up. Check whether the limit is allowed first, because essential health benefits on regular plans generally can’t have one. Appeal if it’s wrong, look for other coverage if it’s valid, and bill the patient last.

FAQ

Sources

How we checked: every code quote on this page was compared word for word with the X12 CARC and RARC lists on 20 October 2026.

• X12, Claim Adjustment Reason Codes (CARC 35, 119). Accessed 20 Oct 2026.
• X12, Remittance Advice Remark Codes (N587, N23). Accessed 20 Oct 2026.
• HealthCare.gov, Ending lifetime and yearly limits. Accessed 20 Oct 2026.
• CMS, Medicare Claims Processing Manual, Ch. 22, §60.1 Group Codes. Accessed 20 Oct 2026.

Last updated: 20 October 2026 · This page is educational and doesn’t replace payer contracts or coding rules.