The following lay description is taken from Encoder Pro:
The physician removes a foreign body embedded in subcutaneous tissue. The physician makes a simple incision in the skin overlying the foreign body. The foreign body is retrieved using hemostats or forceps. The skin may be sutured or allowed to heal secondarily. Report 10121 if the procedure is more complicated, requiring dissection of underlying tissues.
Suturing is included.
Hope that helps.
F Tessa Bartels, CPC, CEMC