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Error code

LS — Paid per special lab agreement

Paid under lab agreement

The lab service was paid under a special lab agreement rather than at the standard fee.

What to do: Compare the amount with the agreement's terms; if it doesn't match, contact the Ministry or send a remittance advice inquiry.

Code
LS
Description
Paid per special lab agreement

Explanation

Updated October 26, 2026

LS means the service was paid under a special lab agreement. Check the amount against the agreement's terms.

What it means

LS means the laboratory service was paid in accordance with a special lab agreement rather than the standard fee.

How to fix it

  1. Compare the amount paid with the terms of the agreement.
  2. If it doesn't match, contact the Ministry or send an RAI.

Don't resubmit if

  • The line was paid. Do not send it again.

How APEX handles it

APEX reads your error reports and remittance advice from MCEDT and lists claims rejected with this code in its Correction Centre for you to correct and resubmit. See how APEX works · Pricing

Related codes: LA

Sources