Am I responsible for my husband's hospital bills?

Community property or equitable distribution only comes into consideration if you are getting divorced.

I actually just "Googled" that question, and it said that if the medical debt was incurred(by husband) while you were married, that you(his wife) are liable for the debt. I figured as much as my husband was in and out of the hospital many times over the 26 years we were married, and I always paid the remaining balances with our money. Sometimes it took a while, but they always got paid. Now as far as a lien being put on your home, well I didn't Google that, so can't speak to that.

I found this quote on a legal advice site:
"In general, one spouse is not obligated to pay the medical bills of the other spouse. Unfortunately, there are several exceptions to this rule.
If you live in a community property state, you would typically bear responsibility for such a debt. The general rule in such a case is, a medical bill or other debt that is incurred during the marriage, versus debt that is incurred before the marriage, is considered a joint debt. This holds true even if the debt is listed exclusively in one spouse’s name.
If you signed a document stating that you would be responsible for payments on a debt or medical bill, you are liable for payments. For example, if your spouse has been admitted to the hospital, and you signed or acted as a co-signer on any documents that would obligate you for payment of any bills incurred during your spouse’s hospital stay, as a signer, you are responsible for payments. As a co-signer, you are responsible for payments if your spouse fails to pay the bills. This is true no matter what state that you live in." (end quote)
As I found the above on a legal advice site, and have no proof it is true, I would suggest that you check in your own State first to find out if you are in a community property State. Also would ask if you signed any admission papers, etc. which assumed the debt. I would also, were I you, check with a lawyer. It is always worth the expensive hour to get questions this important answered by someone who is qualified to answer it. I am not.
I hope there are others here who can more adequately address this issue; to tell you the truth I was very surprised to find out that you aren't responsible to pay his medical bills.
The question of a lien on the house I would guess would depend upon how the house is titled.
Do seek good legal advice on this.