By Michael Perry, M.D. Foraminal narrowing, or foraminal stenosis, is a condition of the spine that can cause pain and other symptoms resulting from spinal nerve root compression. At every level of the spine, a pair of nerve roots runs through the spinal column via small openings called foramina (singular: foramen).
When claims are entered into the Medicare system, they are issued a tracking number known as the internal control number (âICNâ). The ICN is a 13-digit number assigned to each claim received by Medicare. The significance of the digits is as follows: 1  Digits 1-2: Indicate how the claim was submitted (electronically or via paper). 2  Digits 3-4: Indicate the calendar year in which the claim was received.
SN : Serial Number; CD : Check Digit based on Luhn algorithm; SVN : Software Version Number; If you notice the format, the 15th digit of the IMEI is a check digit and the IMEISV has a 2-digit software version number but without the check digit. To retrieve information of a mobile device, we normally perform an IMEI lookup rather than an IMEISV lookup.