--- title: "Bill Period" slug: "bill-period" updated: 2026-08-10T20:23:16Z published: 2026-08-10T20:23:16Z canonical: "help.idibilling.com/bill-period" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.idibilling.com/llms.txt > Use this file to discover all available pages before exploring further. # Bill Period To narrow the results that are displayed in the Unbillable Analyzer, you can select an open Bill Period to search for unbillable records. An open Bill Period is one that has not yet been both billed and approved. Once a Bill Period has been billed and approved, it is no longer displayed in the drop-down list of Bill Periods. To work with records that could not be guided to either a bill period or service number, you must select **Unguidables** from the Bill Period drop-down list. (See [Unguidables](/v1/docs/working-with-unguidable-records)) You can also select to display results from **All Available Bill Periods**, which is the default choice.