This value set includes codes based on the following rules:

• Include these codes as defined in http://www.nlm.nih.gov/research/umls/rxnorm version 04062020

  Code	Display
  723	Amoxicillin
  19711	Amoxicillin-Potassium Clavulanate Combination
  733	Ampicillin
  18631	Azithromycin
  2193	Ceftriaxone
  2194	Cefuroxime
  2551	Ciprofloxacin
  21212	Clarithromycin
  3640	Doxycycline
  4053	Erythromycin
  70618	Penicillins
  10831	Trimethoprim-Sulfamethoxazole Combination
  10395	Tetracycline

• Include these codes as defined in http://snomed.info/sct version http://snomed.info/sct/731000124108/version/20200901

  Code	Display
  260413007	None

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

  Code	Display
  OTH	Other
  UNK	Unknown