NSF stands for National Standard Format. According to http://www.hipaanet.com/hisb_nsf.htm, the NSF consists of fixed-length (320 bytes) records. Each record has a unique identifier and logically related data elements.
A) Objective - The NSF was designed to standardize and increase the submission of electronic claims and coordination of benefits exchange.
B) Function - The NSF is used to electronically submit health care claims and encounter information from providers of health care services to payers. It is also used to exchange health are claims and payment information between payers with different payment responsibility.
C) User Environment - NSF users consist of a variety of health care providers, such as, professional, dental, chiropractic, Indian health service providers, and suppliers of medical equipment and supplies. A variety of payers also use the format to exchange claim and payment information.
D) Systems Environment - The NSF is a file format and is platform/operating system independent.
E) Application Function/Domain Completeness - All codes used in the NSF are complete.
F) The NSF is "user friendly" and easily implemented. It contains detailed record and data descriptions as well as unambiguous data definitions. It is widely used by providers of health care and payers. In FY96, 668,650,936 Medicare claims were submitted electronically. Ninety eight (98) percent of those claims were in the NSF. The NSF does not have to be translated prior to application processing. The use of compression techniques eliminates at least 50% overhead when transmitting the NSF. With compression, the NSF is more economical than an ANSI X12 837 to transport.
NSF codes are pre-loaded in OfficeMate and should not be modifed. If you modify embedded NSF codes in OfficeMate, your insurance claims will be rejected. For a complete list of NSF codes, contact your insurance carriers.