Prior Authorization Numbers on the CMS-1500

Before you start

Compare patient, provider, service or procedure, date range, units, and other authorization conditions with the claim.
An authorization from an earlier episode or different service may look valid but fail payer edits.
Retain the payer approval, reference information, and any documentation needed to explain the authorization if the claim is questioned.

Match the authorization

Compare patient, provider, service or procedure, date range, units, and other authorization conditions with the claim.

Do not recycle old numbers

An authorization from an earlier episode or different service may look valid but fail payer edits.

Keep supporting records

Retain the payer approval, reference information, and any documentation needed to explain the authorization if the claim is questioned.

Authorization-number review

Match the authorization number to the patient, service, provider, and authorized date range.
If the treatment plan changes, verify whether the existing authorization still applies.
Retain the payer authorization record so staff can reconcile a later rejection or denial.

Treat authorization as a linked record

Store the payer’s authorization response with enough context to identify the approved patient, provider, service, quantity, dates, and location when those elements are part of the approval. Then make the claim reference that record rather than relying on a number copied into a note. If the course of treatment changes, the billing team can quickly determine whether the approval still matches the service being billed and whether an updated authorization is needed.

Sources and verification

Use the NUCC/CMS sources below to confirm current CMS-1500 instructions, then apply the payer’s rules for the specific professional claim.

Related guides

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