> For the complete documentation index, see [llms.txt](https://docs.os.uk/osngd/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/osngd/code-lists/code-lists-overview/presencevalue.md).

# presencevalue

This code list is used in association with various attributes which can be present within multiple OS NGD feature types across various OS NGD themes. The code list describes whether a characteristic that the attribute describes is present, not present or unknown.

| Label       | Definition                                                                                |
| ----------- | ----------------------------------------------------------------------------------------- |
| Present     | The characteristic that the attribute describes is present.                               |
| Not Present | The characteristic that the attribute describes is not present.                           |
| Unknown     | The characteristic that the attribute describes is in scope of capture, but is not known. |


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