This value set includes codes based on the following rules:

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/nciVersionOfNDF-RT version 20090310

  Code	Display
  N0000005840	Amoxicillin (Structural Class)
  N0000166998	Augmentin
  N0000005873	Ampicillin (Structural Class)
  N0000006752	Azithromycin (Structural Class)
  N0000005816	Ceclor
  N0000007316	Clarithromycin (Structural Class)
  N0000008026	Doxycycline (Structural Class)
  N0000007133	Erythromycin (incl. pediazole)
  N0000011281	Penicillins (Structural Class)
  N0000006275	Tetracycline (Structural Class)
  N0000167190	Cotrimoxazole (bactrim / septra)

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-NullFlavor version 20090501

  Code	Display
  OTH	other
  UNK	unknown