WGU gives each course a banner number like NURS 3117 or ITEC 3100 and a short WGU code, one letter plus three digits, which is what students, forums, and this site actually use. C-codes are the legacy generation, 146 still in the July 2026 catalog; D-codes are the current generation, 621 and growing. Many courses exist under both because subjects were re-issued with new codes: C172 and D315 are both Network and Security Foundations. Your Degree Plan shows which code you hold, and that code, not the banner number, is the key to finding help, samples, and this site's course pages.
The two identities of every course
| Identity | Example | Where you see it |
|---|---|---|
| Banner / subject number | BUS 2010, PHIL 1020, NURS 5800 | Transcripts, catalog tables, transfer paperwork |
| WGU code | D072, D265, D115 | Degree Plan rows, courseware, every student conversation ever |
The digits of a WGU code do not reliably encode level or subject; read the level from your program's catalog listing, never from the number. What the code does encode is generation: the letter tells you which era of the course you hold.
C-series versus D-series, and why both exist
WGU refreshes courses continuously, and a substantial refresh issues a new code. The current wave moved most of the catalog onto D-codes while students mid-program often remain on the C-code version until they pass it. Practical consequences:
- Same subject, different rubric. C172 and D315 teach the same foundations, but their assessments are not interchangeable: task prompts, rubrics, and OA blueprints belong to the specific code. Help material for the wrong generation is a classic way to bounce a task.
- Forum advice ages badly. A three-year-old thread about C955's exam may describe an assessment that no longer exists under the successor code. Check the code before trusting the tale.
- Your Degree Plan is the referee. Whatever code appears there is your course, current materials and all. When in doubt, screenshot the row and send it; the chat desk resolves any code, either generation, same-day.
Verified high-traffic codes we cover
| Code | Title | Area |
|---|---|---|
| D072 | Fundamentals for Success in Business | Business intro |
| D265 | Critical Thinking: Reason and Evidence | Gen-ed, current successor to C168 |
| C955 | Applied Probability and Statistics | Gen-ed math |
| D089 | Principles of Economics | Business core |
| D253 | Values-Based Leadership | Business |
| C206 | Ethical Leadership | MBA core |
| C207 | Data-Driven Decision Making | MBA core |
| C216 | MBA Capstone | MBA |
| D315 | Network and Security Foundations | IT, dual-coded with C172 |
| D430 | Fundamentals of Information Security | Cybersecurity |
| C949 | Data Structures and Algorithms I | Computer science |
| D522 | Python for IT Automation | IT |
| D236 | Pathophysiology | Nursing |
| D218 | Intrapersonal Leadership and Professional Growth | RN to BSN |
| D219 | Scholarship in Nursing Practice | RN to BSN |
| D115 | Advanced Pathophysiology for the Advanced Practice Nurse | MSN, the 3 Ps |
| D660 | Instructional Technology and Online Pedagogy | Teachers College |
The catalog carries 767 code and title rows; published course pages grow toward it continuously. A code without a page yet still gets full service, send it in chat with the task number and rubric.
Reading a Degree Plan row like a professional
Each row on my.wgu.edu shows the course name, the WGU code, the CU value, and the assessment type. That last field is the one that sets your strategy: task courses route to the performance assessment service, exam courses to OA prep, and dual-instrument courses to both. CU value tells you what the course is worth toward the term's pace; the tuition manual shows why high-CU courses are the ones worth expediting first.
Whatever the code, the clock is the same
C-series or D-series, send the code and rubric; a Competent-targeted draft or a cut-score study plan comes back in 24 to 48 hours.
Sources and verification
Facts on this page come from official and independent sources, and anything that matters is worth checking against the originals:
- www.wgu.edu/about/institutional-catalog.html: WGU's Institutional Catalog, the primary source for assessment, grading, and term policies
- www.wgu.edu/financial-aid-tuition/tuition-business-degrees.html: official per-term tuition published at wgu.edu
- nwccu.org: Northwest Commission on Colleges and Universities, the institutional accreditor
- www.ccneaccreditation.org: Commission on Collegiate Nursing Education, the nursing accreditor
- apastyle.apa.org: APA Style, the official style authority behind the formatting rules