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.
Internal Transaction Number (ITN) is âthe Automated Export System (AES) generated number assigned to a shipment confirming that an electronic export information transaction was accepted and is on file in the AES.â [15 CFR 30.1; Title 15 -- Commerce And Foreign Trade; Subtitle B -- Regulations Relating To Commerce And Foreign Trade; Chapter I -- ...