The IRS's latest guidance on what ITIN numbers are valid vs. what ones have expired can be found here:
https://www.irs.gov/pub/irs-pdf/iw7.pdf
Expired ITINs. If your ITIN wasn’t included on at least one U.S.
federal tax return for the last 3 consecutive tax years, it will expire
on December 31 of the third consecutive tax year, and must be
renewed before being used again on a U.S. federal tax return."
ITINs with middle digits (the fourth and fifth positions) “70,”
“71,” “72,” “73,” “74,” “75,” “76,” “77,” “78,” “79,” “80,” “81,” “82,”
“83,” “84,” “85,” “86,” “87,” or “88” have expired. In addition, ITINs
with middle digits “90,” “91,” “92,” “94,” “95,” “96,” “97,” “98,” or
“99,” IF assigned before 2013, have expired.
So in your case, it appears to depend on whether your family member's ITIN with the middle digits of 94 was issued before 2013 (expired) or after 2013 (not expired unless it went unused per the details recited above.)
