| Field of study | Survey of Earned Doctorates field code |
|---|---|
| Life sciences | 000–299 (excluding 152, 217), 577, 685 |
| Agricultural sciences and natural resources | 000–099, 685 |
| Biological and biomedical sciences | 100–199 (excluding 152) |
| Health sciences | 200–299 (excluding 217), 577 |
| Physical sciences and earth sciences | 500–599 (excluding 577), 152 |
| Chemistry | 520–539 |
| Geosciences, atmospheric, and ocean sciences | 510–519, 540–559, 580–599, 152 |
| Physics and astronomy | 500–509, 560–579 (excluding 577) |
| Mathematics and computer sciences | 400-499 (excluding 415) |
| Computer and information sciences | 400–419 (excluding 415) |
| Mathematics and statistics | 420–499 |
| Psychology and social sciences | 600–699, (excluding 685), 217, 770 |
| Psychology | 600–649 |
| Anthropology | 650, 655, 656 |
| Economics | 665, 667, 668 |
| Political science and government | 678 |
| Sociology | 686 |
| Other social sciences | All fields 600–699 (excluding 685) not listed above, 217, 770 |
| Engineering | 300–399, 415 |
| Aerospace, aeronautical, and astronautical engineering | 300 |
| Bioengineering and biomedical engineering | 306 |
| Chemical engineering | 312 |
| Civil engineering | 315 |
| Electrical, electronics, and communications engineering | 324 |
| Industrial and manufacturing engineering | 339 |
| Materials science engineering | 342 |
| Mechanical engineering | 345 |
| Other engineering | All fields 300–399 not listed above, 415 |
| Education | 800–899 |
| Education administration | 804–807 |
| Education research | 800, 808–845 |
| Teacher education | 850–858 |
| Teaching fields | 860–889 |
| Other education | All fields 800–899 not listed above |
| Humanities and arts | 700–799 (excluding 770), 984 |
| Foreign languages and literature | 740–769 |
| History | 700–719 |
| Letters | 720–739 |
| Other humanities and arts | All fields 700–799 (excluding 770) not listed above, 984 |
| Othera | 900–999 (excluding 984) |
| Business management and administration | 900–939 |
| Communication | 940–959 |
| Non-S&E fields not elsewhere classified | 960–989 (excluding 984) |
| Unknown field | 999 |