Reece undergoes a colectomy (removal of part of her colon) along with a colostomy (creation of an artificial opening). Would it be correct to code this surgery with one code or two codes?

1.Frank undergoes an upper gastrointestinal endoscopy (EGD) procedure during which a biopsy is performed. Would the answer differ if multiple biopsies were taken? Would the answer differ if only brushing were performed?

2.Reece undergoes a colectomy (removal of part of her colon) along with a colostomy (creation of an artificial opening). Would it be correct to code this surgery with one code or two codes?