Medical grid and bar code that can be used on MRI's, CAT Scans, X-rays, and as a reference on any scan. This grid would pinpoint an area or specific location on a person or animal for reference. This grid would be made of vertical and horizontal lines that are either lettered or numbered coordinates. For example, a swimmers cap could have a grid with the X,Y,Z coordinates printed in order to pinpoint the accuracy of the area requiring attention. The barcodes could be used for personal identification.