This value set includes codes based on the following rules:

• Include these codes as defined in urn:oid:2.16.840.1.114222.4.5.274 version 20200526

  Code	Display
  PHC1448	8th grade or less
  PHC1449	9th through 12th grade; no diploma
  PHC1450	High School Graduate or GED Completed
  PHC1451	Some college credit, but no degree
  PHC1452	Associate Degree
  PHC1453	Bachelor's Degree
  PHC1454	Master's Degree
  PHC1455	Doctorate Degree or Professional Degree

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

  Code	Display
  UNK	Unknown