Rekord LOINC: 22004-6

Cyclic Redundancy Code (CRC) CHECKSUM for the NAACCR record in which it resides. A unique value is calculated for each unique record in a NAACCR file. The value is calculated by applying a CRC algorithm to all data fields of the NAACCR record (excluding the CRC CHECKSUM field). Following a transmission, the CRC CHECKSUM can be recalculated and compared with the transmitted CHECKSUM. Identical values indicate an error-free transmission; differing values indicate an error in transmission. The algorithm recommended by NAACCR is on the NAACCR website at: http://www.naaccr.org. Users must provide recipients of the data with the algorithm used to create the data transmission file. Otherwise, the item should be left blank. The CHECKSUM can be used to determine if a record-level error occurred during transmission and can also be used to correct any such errors. Record-level CRC CHECKSUMs also allow portions of a NAACCR file to be salvaged in the event of a transmission error... NAACCR Data Standards and Data Dictionary Version 11

CA; Cnt; Count; Misc; Miscellaneous; Number; Oncology; Other; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Unspecified