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N72 Remark Code: PPS Code Changed by Medical Review

N72 means medical reviewers changed the prospective payment system (PPS) code on the claim because the clinical records did not support the code submitted. The payment was recalculated using the reviewers' code.

Code: N72 (RARC N72)
Status: Active In use since January 1, 2000; last modified June 30, 2003.
Code set: Remittance Advice Remark Codes (RARC)
Group codes: CO (Contractual Obligation): The payment reduction from the changed code is a facility adjustment and generally cannot be billed to the patient.
PR (Patient Responsibility): Patient cost-sharing is recalculated on the reviewers' code.
Official description: PPS (Prospective Payment System) code changed by medical reviewers. Not supported by clinical records.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified: September 24, 2026 against the official X12 list.

What N72 means

Unlike N69, which reports an automated change, N72 reflects a human decision. A reviewer, often a nurse or coding specialist working for the payer or a review contractor, read the medical record and concluded the PPS code you billed was not supported. They assigned a different code, usually a lower-paying one, and the claim was repriced.

N72 often pairs with CARC 150, CARC 216, or a level-of-care adjustment such as CARC 186.

Common causes

Secondary diagnoses that raise severity were not documented clearly enough to count.
The principal diagnosis sequencing was not supported by the record.
Assessment data for a post-acute PPS, such as functional status, did not match the clinical notes.
Query responses or late physician documentation were not included with the records sent.

How to fix it

Get the review findings and the reviewers’ code.
Compare with the record. Check each diagnosis and procedure that drove the original code against physician and clinical documentation.
Appeal where supported, citing page references in the record and applicable coding guidelines.
Accept the change where documentation truly does not support the original code, and share the lesson with coders and clinicians.

How to prevent it

Strong clinical documentation practices, including timely physician queries, reduce review-based downgrades. Audit high-risk codes internally before billing, and make sure records sent for review are complete. Tracking review outcomes by code helps target education.

Codes that may appear with N72

CO-150 (Payer deems the information submitted does not support this level of service.): The information submitted does not support the level of service billed.
CO-216 (Based on the findings of a review organization or the payer's findings.): Based on the findings of a review organization or the payer's findings.
CO-186 (Level of care change adjustment.): A level of care change adjustment following review.

N69 (Alert: PPS (Prospective Payment System) code changed by claims processing system.): Alert that the claims processing system, not a reviewer, changed the PPS code.
N10 (Adjustment based on the findings of a review organization/professional consult/manual adjudication/medical advisor/dental advisor/peer review.): A general adjustment based on medical, dental, or peer review.
N208 (Missing/incomplete/invalid DRG code.): The DRG code is missing or invalid.
N163 (Medical record does not support code billed per the code definition.): The medical record does not support the code billed per the code definition.

N72 FAQ

What typically causes a DRG downgrade on review?

Common reasons include secondary diagnoses the reviewer found unsupported, a principal diagnosis the reviewer resequenced, or procedures the documentation did not clearly support.

Should I appeal?

If your coding is supported by physician documentation, an appeal with specific references to the record is often worthwhile. If documentation was weak, focus on improving it for future stays.

Does N72 affect related claims?

It can. A changed code on an inpatient or post-acute claim may affect later claims that depend on it, so review related accounts too.

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