# Page Not Found

The URL `addressing-and-location/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/countrycode` does not exist.

You might be looking for one of these pages:
- [CountryCode](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/countrycode.md)
- [CountryCode](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-fundamentals/code-lists-and-enumerations/countrycode.md)
- [ChangeTypeCode](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/changetypecode.md)
- [BLPUStateCode](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/blpustatecode.md)
- [FileTypeCode](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/filetypecode.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.os.uk/os-downloads/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.os.uk/os-downloads/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/countrycode.md`)
- Use `Accept: text/markdown` header for content negotiation