"chemicaltypeid","chemicaltypecode","chemicaltypedescription","tecode"
1,1,"New molecular entity (NME)",
2,2,"New active ingredient",
3,3,"New dosage form",
4,4,"New combination",
5,5,"New formulation  or new manufacturer",
6,6,"New indication [no longer used]",
7,7,"Drug already marketed without an approved NDA",
15,8,"OTC (over-the-counter) switch",
16,10,"New indication submitted as distinct NDA - not consolidated",
17,9,"New indication submitted as distinct NDA, consolidated with original NDA after approval",