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.
If this digit is 9 the next three digits are the country code from ISO 3166-1. The issuer identification number also known as the bank identification number (BIN) is the first six digits of the credit card number. These identify the institution that issued the credit card to the card holder. Here's a list of known IIN prefixes. Afterwards comes the account number, digit 7 to last minus one. The maximum length of the account number is 12 digits.