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N59 Remark Code: See Provider Manual

N59 is an informational alert telling you to refer to your provider manual for additional program and provider information. The payer is pointing you to its published rules to understand or act on the decision reported by the reason code.

Quick facts

Code
N59 (RARC N59)
Status
Active In use since January 1, 2000; last modified November 1, 2015.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The adjustment is the provider's responsibility under the payer's rules, which the provider manual explains.
  • PR (Patient Responsibility): The amount was assigned to the patient. The manual may explain the benefit or program rule involved.
Official description
Alert: Please refer to your provider manual for additional program and provider information.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N59 means

N59 is a pointer, not an explanation. When the standard reason and remark codes cannot fully express a payer’s policy, the payer may add N59 to tell you the answer is in its provider manual. The manual might describe a billing requirement, a program limitation, a documentation rule, or an enrollment requirement.

Because N59 carries no decision of its own, always read it together with the CARC on the same line, such as CARC 16, CARC 96, or CARC 272.

What to do

  1. Identify the decision from the CARC and any other remark codes.
  2. Open the current manual for the payer and program (Medicaid, Medicare Advantage, commercial) that processed the claim.
  3. Find the section related to the service, provider type, or billing requirement at issue.
  4. Act on the rule. Correct and resubmit, supply missing information, or appeal if the manual supports your position.

Manuals are updated often, so check the version in effect on the date of service. Recording which rules cause repeat adjustments makes future claims cleaner; see our CARC and RARC analysis guide.

Codes that may appear with N59

  • CO-16 (Claim/service lacks information or has submission/billing error(s).): A billing error or missing information, where the manual explains the payer's requirement.
  • CO-96 (Non-covered charge(s).): A non-covered charge, where the manual describes the relevant coverage rule.
  • CO-272 (Coverage/program guidelines were not met.): Coverage or program guidelines were not met, as detailed in the manual.
  • N130 (Consult plan benefit documents/guidelines for information about restrictions for this service.): Directs you to plan benefit documents for service restrictions.
  • N220 (Alert: See the payer's web site or contact the payer's Customer Service department to obtain forms and instructions for filing a provider dispute.): Directs you to the payer's website or customer service for dispute forms and instructions.
  • N25 (This company has been contracted by your benefit plan to provide administrative claims payment services only.): Discloses that the payer is an administrator without financial risk for the plan.

N59 FAQ

Does N59 tell me what went wrong?

No. It only points to the manual. The CARC and any other remark codes on the line explain the actual decision.

Where do I find the provider manual?

Most payers publish their manuals on their provider website or portal. Medicaid programs and Medicare contractors also post program-specific manuals.

What if the manual doesn't explain the denial?

Call provider services with the claim number and ask which manual section applies. Note the answer and reference number for follow-up.