Healthcare.gov上似乎說AOS pending的都可以：
Applicants for any of these statuses qualify to use the Marketplace:
Adjustment to LPR Status
仔細看法規，關於Obamacare的lawfully present定義，45 CFR 155.20說：
"Lawfully present" has the meaning given the term in § 152.2.
跟著45 CFR 152.2列出各種算lawfully present的情況。其中包括
(4)(vii) Aliens whose visa petitions have been approved and who have a pending application for adjustment of status;
既然你的I-526批了，如果你有I-485 pending你應該符合這個。另外有一項
(4)(iii) Aliens who have been granted employment authorization under 8 CFR 274a.12(c)(9), (10), (16), (18), (20), (22), or (24);
拿到I-485 EAD（就是C9類型EAD）之後，無論petition有沒有批都可以符合這個。
