What is a geozip?
A geozip is defined as the first three digits of the zip code in Illinois where the medical treatment was provided. If you receive medical care in the zip code 60601, for example, the fees would appear in the geozip 606. Click here to see a list of some of the cities in each Illinois geozip. What is a conversion factor? A conversion factor is a dollar amount used to determine the amount of reimbursement for most anesthesia services. The conversion factor is multiplied by time units, base value units, modifier units, and qualifying circumstances units. Calculating the correct fee schedule amount can be determined by consulting the Instructions and Guidelines, ASA Relative Value Guide, and the AMA CPT. What is a modifier? Modifiers are two-digit numeric or alpha attachments to CPT codes that indicate that a service was altered in some way from the stated CPT description—without actually changing the basic CPT definition. Modifiers can indicate, among other things, that a) the procedure w
