Probably a typo or misplaced digits. Code D is retirement plan deferrals and Code DD is health insurance paid for by the government. There are no numbers in those code. Verify with Defense Finance and Accounting Service
What do the letter codes in Box 12 of my W-2 mean?
Military Pay and Pensions
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
