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M110 Remark Code (Deactivated): Purchased Interpretation ID

M110 meant the identifier for the provider from whom the billing provider purchased interpretation services was missing, incomplete, or invalid. X12 deactivated it without naming a successor; N283, for the purchased service provider identifier, is the closest active remark.

X12 deactivated RARCM110 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: M110 (RARC M110)
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 denials; the billing provider needed to report the correct identifier.
Official description: Missing/incomplete/invalid provider identifier for the provider from whom you purchased interpretation services.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified: September 24, 2026 against the official X12 list.

What M110 meant

Some payers let a provider bill for an interpretation it bought from another physician. To pay it, they need to know who actually did the interpretation. Remark M110 told the billing provider that the identifier for that outside interpreter was missing or not valid.

What replaced it

No successor was named. The closest active remark is N283, which covers a missing or invalid purchased service provider identifier. Related remarks include M133, when the claim does not identify who performed a purchased test or its cost, and M65, which limits purchased-test claims to one interpreting physician charge.

If you still see M110

It exists only in archived remittances. For a current purchased-service denial, obtain the interpreting provider’s NPI, report it in the purchased service fields with the amount you paid, and confirm the payer permits purchased interpretations for that service before resubmitting.

N283 (Missing/incomplete/invalid purchased service provider identifier.): Missing, incomplete, or invalid purchased service provider identifier.
M133 (Claim did not identify who performed the purchased diagnostic test or the amount you were charged for the test.): Claim did not identify who performed the purchased diagnostic test or the amount charged.
M65 (One interpreting physician charge can be submitted per claim when a purchased diagnostic test is indicated.): Only one interpreting physician charge can be submitted per claim with a purchased test.

M110 FAQ

What is a purchased interpretation?

An arrangement where the billing provider buys the reading of a test from another physician and bills the payer for it, subject to the payer's purchased-service rules.

How is M110 different from M108?

M108 concerned the interpreting provider's identifier in general. M110 was specific to interpretations the billing provider purchased from someone else.

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