A CVS Caremark pharmacy audit arrives as a list of claims, and Caremark's 2026 Provider Manual assigns a specific discrepancy code to each claim on that list before the pharmacy ever responds. Appendix A of the manual, the Appeals Process Documentation Guidelines, splits every code onto one of two tracks: on one, a named document can still resolve the claim; on the other, the manual states plainly that no further documentation will change the finding. Claims left unresolved past the response window move onto the Final Audit Discrepancy Report and become due and owing.
How Caremark Codes an Audit Discrepancy
Caremark's audit team compares dispensed claims against the Provider Agreement and issues an initial discrepancy report built around a Pharmacy Audit Discrepancy List. The list identifies each discrepant claim by prescription number and date of fill, and its D1 and D2 columns carry the discrepancy code itself, the same per-claim structure that defines a PBM audit. The accompanying documentation guidelines describe, code by code, what will move a claim off the list and what will not.
Codes a Document Can Still Resolve
Several codes keep a claim open to a specific, named form of proof. A copay (CPY) discrepancy needs a patient invoice showing the copay amount along with proof it was paid, matched to the date of fill. A missing prescription (MP) discrepancy needs the original hard copy if it can still be found, or a signed prescriber statement naming the medication, quantity, directions, original fill date, and authorized refills, plus the dispensing label; computer-generated, telephone, and transfer prescriptions are excluded for this code. A no signature log (NSL) discrepancy needs the signature log itself, a signed patient statement, or a signed patient profile. Documentation for a drug invoice shortage (DIS) discrepancy consists of wholesaler purchase summaries or original invoices naming the NDC, product name, quantity, invoice number, and purchase dates.
Codes the Manual Marks Closed
Other codes carry the same instruction in Appendix A: this discrepancy does not require further documentation. An invalid (INV) finding, tied to non-compliance with state or federal rules or an altered prescription, is treated as established by the audit record itself. The same instruction applies to misfill (MIF), refill too soon (RTS), duplicate paid claim (DPC), over-billed quantity (OBQ), and an inaccurate NPI or DEA number on the claim. For this track, the finding rests on the claims data the audit already captured, so the pharmacy's response runs through the written appeal itself rather than through a new document. Adverse audit findings also feed the review that can lead toward network termination, not only a one-time chargeback.
The 30-Day Appeal Window
Section 8.07 of the Provider Manual gives the pharmacy thirty days from the initial discrepancy report to respond in writing, or a different period where state law sets one, with documentation sent by certified mail, fax, secure electronic message, or another trackable carrier. That response is the pharmacy's audit appeal of the initial findings, and a pharmacy can ask Pharmacy Performance for an extension before the due date, though Caremark can deny the request. Claims not documented and validated by the deadline move onto the Final Audit Discrepancy Report as a recoupment Caremark can collect, including by offsetting amounts it owes the pharmacy before the thirty-day period runs out. Once the final report issues, the dispute path shifts to the arbitration process in Section 14.09, and the discrepancy code itself has already been decided.
Caremark's own manual decides which discrepancy codes a document can still resolve before the pharmacy's response window ever opens.
Why Early Legal Counsel Is Critical
It is critical that a pharmacy promptly retain experienced healthcare defense counsel once a Caremark discrepancy list arrives, rather than leave the response to front-line staff alone. Early legal intervention can confirm which codes are genuinely open to documentation, preserve state-law defenses the Provider Manual does not mention, avoid admissions in the response that resurface later in arbitration, and calendar the thirty-day deadline before it runs. Deciding when counsel should enter a PBM audit response matters most for codes that are only curable inside that window, and where a pharmacy belongs to a PSAO, that organization's own role in the response should be confirmed alongside counsel rather than assumed. Delaying representation past the response window can leave a pharmacy without a cure for claims that were only curable within it.
How Health Law Alliance Can Help
Health Law Alliance reads Caremark's discrepancy codes the way Caremark's own auditors do, before a single page of documentation goes out. Health Law Alliance's attorneys have overseen 2,000+ audits and handled 5,000+ matters, with 25+ years of experience. If a Caremark discrepancy list has arrived at your pharmacy, contact Health Law Alliance's PBM audit defense attorneys for a free, confidential consultation.
