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This variable is contained in the following files:
SAS Name
CLM_TRTMT_AUTHRZTN_NUM
The number assigned by the medical reviewer and reported by the provider to identify the medical review (treatment authorization) action taken after review of the beneficiary's case. It designates that treatment covered by the bill has been authorized by the payer.
This number is used by the fiscal intermediary and the Peer Review Organization.
Source: NCH