N636Remark Code (RARC)Active
Effective 07/15/2013

N636 Remark Code - Adjusted for Reimbursement Limit

The N636 remark code indicates that an adjustment was made because the billed service is only reimbursable once per injury. This means that the payer has determined that multiple claims for the same injury cannot be reimbursed, leading to a denial or adjustment for subsequent submissions.

How It Relates to the Denial

The N636 remark code typically accompanies a Claim Adjustment Reason Code that indicates the claim was adjusted due to a service being billed multiple times for the same injury. This combination signals that the payer is enforcing their policy on reimbursement limits for specific services related to injuries.

Common Scenarios

1A provider submitted multiple physical therapy claims for a patient following a single injury. The remittance shows an adjustment for the second claim.
→ The N636 remark code clarifies that the adjustment occurred because the payer only reimburses for one therapy claim related to that specific injury.
2A claim for a follow-up visit was submitted after an initial surgery for a specific injury. The remittance returned an adjustment indicating the visit was not reimbursable.
→ In this case, the N636 remark code suggests that the follow-up visit is considered part of the initial treatment and therefore not eligible for additional reimbursement.
3A hospital billed for multiple imaging services performed after the same accident. The remittance included an adjustment for one of the imaging services.
→ The presence of the N636 remark code indicates that the payer is enforcing a policy that limits reimbursement to one imaging service per injury.

What to Do

  1. Review the claim to ensure that only one service related to the injury is being billed for reimbursement.
  2. If additional services were necessary, consider whether they are distinct and justifiable as separate treatments for the injury.
  3. Do not resubmit claims for services already reimbursed under the same injury unless new documentation supports their necessity.

What to Check

  • The original claim submission to confirm the services billed.
  • The claim adjustment reason code accompanying N636 to understand the basis for the adjustment.
  • The patient's medical records to verify the treatment details and necessity of multiple services for the injury.