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.
ICQ users are identified by numbers called UIN, distributed in sequential order. The UIN was invented by Mirabilis, as the user name assigned to each user upon registration. The meaning is User Identification Number. Issued UINs started at number 10000 (5 digits) and every user receives a UIN when first registering to ICQ.