what code is used for false positive
False positive serological test for syphilis. 1  Short description: False pos sero test-syph. 2  ICD-9-CM 795.6 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 795.6 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).