If a Veteran is already been awarded their pension, what do  you need to file to change their status as they move into a nursing home?  You will still need to file using :

You will also need to submit a 20-0995 supplemental claim form any time new evidence is being submitted AFTER the Veteran or their spouse has already been awarded their A&A pension.

The 20-0995 supplemental is also used to reopen any previously denied claim, in lieu of a completely a new application, and to submit new and relevant evidence during appeals.