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I am new to cardiology coding, and this one has me perplexed. I appreciate any direction.

"1. Severe native three-vessel disease involving the left main, LAD, intermedius ramus, LCx, and RCA.

2. Successful IVUS guided PCI of the intermedius ramus with Abbott Xience sky point 2.5 x 28 mm DES postdilated using a 2.75 NC balloon in T stenting fashion to LCx.

3. Successful IVUS guided PCI of the LCx into left main and LAD into left main using DK crush technique with placement of a Abbott Xience sky point 3.0 x 23 mm DES in the LCx followed by Abbott Xience sky point 3.0 mm x 28 DES in the mid LAD and Abbott Xience sky point 3.5 x 38 mm DES in overlapping fashion extending from the proximal LAD to ostial left main. The mid to proximal LAD stents were postdilated using a 3.5 mm NC balloon while the left main stents were postdilated using a 4.5 and 5.0 mm NC balloons. Lithotripsy was performed using a 3.0 mm shockwave balloon extending from the distal left main through the ostial, proximal, and mid LAD.

4. Right femoral artery access with Perclose closure."