4
The Packing root operation is identified by the character code 4 in the 3rd position of the procedure code. It is defined as Putting material in a body region or orifice.
Section:
2 = Placement
Body System:
W = Anatomical Regions
Root Operation:
0 - Change1 - Compression2 - Dressing3 - Immobilization5 - Removal6 - TractionThe 4th character refers to the body part or body region.
Packing
Putting material in a body region or orifice