| Value | Code Name | Code | Code System | Code Description |
|---|---|---|---|---|
| 1 | Unknown | |||
| 2 | 8th grade/less | |||
| 3 | 9th-12th grade, no diploma | |||
| 4 | High school graduate or GED completed | |||
| 5 | Some college credit but no degree | |||
| 6 | Associate degree (e.g., AA, AS) | |||
| 7 | Bachelor's degree (e.g., BA, AB, BS) | |||
| 8 | Master's degree (e.g., MA, MS, MEng, MEd, MSW, MBA) | |||
| 9 | Doctorate (e.g., PhD, EdD) or Professional degree (e.g., MD, DDS, DVM, LLB, JD) |