Passed council bills that become orders of Council. Each Monday at the weekly City Council meeting (Tuesday in case of Monday municipal holiday) Council introduces a new set of council bills and passes a set of council bills introduced previously (each bill has been introduced previously but not all necessarily in the immediately preceding week). The passed bills then become the latest set of ordinances, subject to mayoral veto power.
The term "ordinances" widely is used to refer to city laws. Some contexts do support this sense and usage of the term; here, however, we distinguish Municipal Code from ordinances generally. It is the Municipal Code that organizes, codifies, and defines Denver law.
Note that many ordinances, that is, passed council bills, do not pertain to the Municipal Code at all. Ordinances making appropriations, approving contracts, and changing properties' zoning classifications, as examples, are not part of and do not appear in the Code.