Broadly speaking, it's been shown that the force shields (The Parting of Ways), air shell (The Beast Below), and even its protection against the effects of exposure to the Time Vortex to take someone through time with it (The Time of the Doctor) can all be extended outside the physical shell.
The nearest thing to a direct example of this is at the end of the 50th Anniversary Special, when 13 of the Doctor's incarnations used their versions of their TARDIS to displace all of Gallifrey into a pocket universe in order to save it from the Dalek onslaught at the end of the Time War while preserving the appearance that it had been destroyed. In the interests of full disclosure, there was also a stasis cube on hand, but it's not clear whether it was actually used, or if it was just the inspiration. As with many things in this canon, it doesn't exactly provide a detailed technical manual...
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The nearest thing to a direct example of this is at the end of the 50th Anniversary Special, when 13 of the Doctor's incarnations used their versions of their TARDIS to displace all of Gallifrey into a pocket universe in order to save it from the Dalek onslaught at the end of the Time War while preserving the appearance that it had been destroyed. In the interests of full disclosure, there was also a stasis cube on hand, but it's not clear whether it was actually used, or if it was just the inspiration. As with many things in this canon, it doesn't exactly provide a detailed technical manual...