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This variable is contained in the following files: Outpatient (Fee-for-Service)
Short SAS Name
REVANSI4
SAS Name
REV_CNTR_4TH_ANSI_CD

The fourth code used to identify the detailed reason an adjustment was made (e.g. reason for denial or reducing payment).
NOTE1: This field is populated for those claims that are required to process through Outpatient PPS Pricer. The type of bills (TOB) required to process through are: 12X, 13X, 14X (except Maryland providers, Indian Health Providers, hospitals located in American Samoa, Guam and Saipan and Critical Access Hospitals (CAH)); 76X; 75X and 34X if certain HCPCS are on the bill; and any outpatient type of bill with a condition code '07' and certain HCPCS. These claim types could have lines that are not required to price under OPPS rules so those lines would not have data in this field.
Additional exception: Virgin Island hospitals and hospitals that furnish only inpatient Part B services with dates of service 1/1/02 and forward.
NOTE2: Beginning with NCH weekly process date 7/7/00, this field will be populated with data. Claims processed prior to 7/7/00 will contain spaces in this field.