The difference is usually the file type.

In Adobe Camera Raw, full white balance presets are available for native RAW files (and DNG), because RAW data preserves the original sensor information and lets ACR apply camera-style white balance settings more flexibly.

If the photo is a JPEG, TIFF, PSD, or another already-rendered RGB file, ACR typically limits white balance to just As Shot, Auto, and Custom. That’s because the image has already had white balance baked in, so the preset options are less meaningful and large changes can degrade image quality.

So if some of your D90 photos show the longer list and others do not, the ones with fewer options are likely not RAW files.

You generally can’t force the full preset list to appear for JPEG/TIFF/PSD files. To get those extra white balance choices, shoot and edit the original RAW files (or convert supported RAW files to DNG).