Yes, distributions from your husband's HSA account used to pay your unreimbursed medical expenses are qualified medical expenses that make the distribution tax free. As indicted in IRS Pub 969 (https://www.irs.gov/pub/irs-pdf/p969.pdf), if you are the HSA owner (your husband is the HSA owner in this case), qualified medical expenses are those incurred by:
1. You (your huband) and your spouse (you).
2. All dependents you claim on your tax return.
3. Any person you could have claimed as a dependent on your return except that:
a. The person filed a joint return,
b. The person had gross income of $4,000 or more, or
c. You, or your spouse if filing jointly, could be claimed as a dependent on someone else's 2015 return.
(Note that you are not your husband's dependent. You are his spouse.)
