| Section | 0 | Medical and Surgical |
| Body System | 2 | Heart and Great Vessels |
| Operation | K | Map: Locating the route of passage of electrical impulses and/or locating functional areas in a body part |
| Body Part 8 Conduction Mechanism |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic |
Device Z No Device |
Qualifier Z No Qualifier |