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.
Claims Information. Adjusting a paid claim with the correct internal control number (ICN) To adjust a paid claim, enter the most recently paid ICN. Incorrectly paid claims can be adjusted when you are not changing the member ID, claim form type, or provider number. For more information, please read Corrective Action for Incorrectly Paid Claim (PDF) .