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MA82 Remark Code (Deactivated): Billing Provider Details

MA82 meant the provider or supplier's billing number or identifier, or its billing name, address, city, state, ZIP code, or phone number, was missing, incomplete, or invalid. X12 deactivated it without naming a replacement.

X12 deactivated RARCMA82 on June 2, 2005. Payers should no longer use it on new remittances, but it can still appear on older ERAs, corrected claims, and appeals.

Code: MA82 (RARC MA82)
Status: Deactivated StoppedJune 2, 2005 (in use since January 1, 1997).
Code set: Remittance Advice Remark Codes (RARC)
Group codes: CO (Contractual Obligation): Paired with CO missing-information adjustments; the billing entity had to correct its data.
Official description: Missing/incomplete/invalid provider/supplier billing number/identifier or billing name, address, city, state, zip code, or phone number.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified: September 24, 2026 against the official X12 list.

What MA82 meant

Remark MA82 covered almost everything that identifies the billing entity: its billing number, name, full address, and phone number. If any of those was absent or did not match the payer’s records, the claim could not be tied to an enrolled provider and was returned.

What replaced it

X12 did not name a successor. Active remarks now isolate each element: N257 for the billing provider’s primary identifier, N256 for the name, and N258 for the address. They usually accompany CO-16.

If you still see MA82

It only exists in older remittances. For a current billing-provider rejection, compare your claim’s billing provider loop with the payer’s enrollment record and NPPES, including NPI, tax ID, name, and address. Correct the mismatch in your system, update enrollment if needed, and resubmit affected claims.

N257 (Missing/incomplete/invalid billing provider/supplier primary identifier.): Missing, incomplete, or invalid billing provider or supplier primary identifier.
N256 (Missing/incomplete/invalid billing provider/supplier name.): Missing, incomplete, or invalid billing provider or supplier name.
N258 (Missing/incomplete/invalid billing provider/supplier address.): Missing, incomplete, or invalid billing provider or supplier address.
CO-16 (Claim/service lacks information or has submission/billing error(s).): Claim lacks information or has billing errors.

MA82 FAQ

How is MA82 different from MA29?

MA29 covered the provider's name and location. MA82 was broader, adding the billing number and phone number and focusing on the billing provider or supplier.

What is the usual root cause?

A billing provider record in the practice system that does not match the payer's enrollment, often after a change of address, ownership, or tax ID.

Important: read before using this information

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