This study begins with a foundational question: Is healthcare a fundamental human right? The answer, from the perspective of Catholic social teaching, is unequivocally affirmative. The Catholic Church has consistently upheld the right to healthcare as intrinsic to the dignity of the human person and essential to the promotion of the common good.1 Despite this moral clarity, many nations, including Zambia, have yet to realize universal healthcare coverage that effectively guarantees this right for all citizens. This study is anchored on the principle that all moral issues are linked and that Catholic social teaching can be integrated in every aspect of Catholic teaching such as bioethics. The integration of Catholic Social Teaching (CST) and bioethics within the framework of universal healthcare represents a profound and sustained commitment to human dignity, justice, and the common good. Grounded in the Gospel and shaped by centuries of theological reflection, CST upholds the intrinsic worth of every human being, advocates the preferential option for the poor, and affirms the moral obligation to promote social equity. These foundational principles align closely with the normative aims of bioethics, which seek to guide medical practice and health policy in a manner that respects human life, fosters compassionate care, and preserves the moral integrity of healthcare systems. In the context of universal healthcare, the convergence of CST and bioethics provides a compelling moral vision for the development of healthcare systems that are accessible, equitable, and of high quality—especially for those who are most marginalised. This integrated perspective calls for policies and practices that harmonise clinical effectiveness with ethical discernment, ensuring that health systems are not only technically efficient but also grounded in justice, solidarity, and the sanctity of human life. Moreover, the evolving dialogue between CST and bioethics reflects an ongoing trajectory of ethical and theological engagement with contemporary healthcare challenges. This dynamic interaction must be understood within both immediate and long-term policy frameworks. Accordingly, this study is guided by a central research question: To what extent has the development of Catholic moral theology beyond the manualist tradition reshaped bioethics into a framework that, informed by Catholic Social Teaching, can ground and guide the pursuit of universal healthcare under conditions of economic and structural constraint, as in the case of Zambia? An important follow-up question is: which resources within Catholic social teaching can be leveraged to help Zambia achieve universal healthcare? In addressing this question, the study adopts a theological-analytical methodology, drawing from key contributions in CST and bioethics across six chapters, with the aim of constructing a morally coherent and contextually relevant approach to universal healthcare.