Body parts involved

The Body parts involved, also known as BPI, is a code system used by the LSA SD that is displayed on the LSA outside sign, in order to inform the doctors and staffs personel, about the body parts that can be involved with the listed anomaly

Codification of body parts
The code is given, following this criterias:
 * The first letter is always a B (Body);
 * The second letter can be an H (Hole), P (Part) or S (System, apparatus),
 * Three numbers (IF needed, after it can be assigned a lowercase letter to specify the variants)