Pope Leo XIV warns AI could fuel ‘antihuman ideologies’ in medicine

Vatican City, Nov 10, 2025 / 16:06 pm (CNA).

Pope Leo XIV warned Monday that artificial intelligence could exacerbate “antihuman ideologies” in medicine as Catholic doctors and moral theologians raise alarms about the future of AI in health care.

In a message on Nov. 10 to an international congress on “Artificial Intelligence and Medicine: The Challenge of Human Dignity,” hosted by the Pontifical Academy for Life, the pope said that ensuring “true progress” in medicine depends on keeping the dignity of every human at the forefront.

“It is easy to recognize the destructive potential of technology and even medical research when they are placed at the service of antihuman ideologies,” Leo XIV said.

Leo added that those responsible for integrating AI into medicine must remember that “health care professionals have the vocation and responsibility to be guardians and servants of human life, especially in its most vulnerable stages.”

“Indeed, the greater the fragility of human life, the greater the nobility required of those entrusted with its care,” he said.

The pope’s message came a day after another of his statements on the ethics of AI led to controversy on the social media platform X. Tech billionaire Marc Andreessen posted a mocking reference to Leo’s call on the AI industry “to develop systems that reflect justice, solidarity, and a genuine reverence for life.” After a pileup of critical replies, Andreessen apparently deleted his own post.

Pro-life concerns over AI billing in medical insurance  

The pope’s remarks on Monday come amid growing concern among Catholic doctors about how artificial intelligence could shape access to care and respect for human dignity in health care systems worldwide.

Dr. Kathleen Berchelmann, a pediatrician and founder of My Catholic Doctor, a telehealth network that connects families seeking Catholic care with like-minded providers, told CNA she is alarmed by how insurance companies are deploying AI in the U.S.

She said AI-driven billing systems are “further pushing pro-life health care providers out of the insurance market to the self-pay market, reducing access to pro-life health care in America.”

“What I see in AI and health care is a technology arms race,” Berchelmann said. “And unfortunately, the people with the big money have higher tech, and … that’s the insurance companies. That’s United Health Care, Anthem Blue Cross Blue Shield, Elevance Health, Aetna, Cigna. … These are the companies that are putting billions into utilization management, which means denials.”

On Oct. 1, Aetna and Cigna implemented AI-automated payments nationwide, a move that has led to what critics call “downcoding,” where insurers automatically downgrade doctors’ claims to lower reimbursement levels without reviewing visit details.

“In particular, in pro-life health care, we’re seeing automatic downcoding because restorative reproductive medicine, which is health care that finds root cause of infertility and treats the root cause, takes more time than a brief workup and a referral to IVF,” Berchelmann said.

“That extended time requires a higher coding. But if I do a real quick workup, I can build a lower code for that. So the predictive AI doesn’t recognize that I’m doing a better job in finding root cause of disease,” she added.

Berchelmann said she sees “tremendous potential for AI in terms of diagnostic capacity and clinical use” and hopes predictive models will demonstrate that “pro-life health care is so much cheaper than IVF.” But for now, she said, “insurance companies, employers paying for health care, and pharmaceutical companies with insurance, are all heavily using AI to not pay for your care.” 

In his message, Pope Leo acknowledged the influence of economic interests in health care and technology. 

“Given the vast economic interests often at stake in the fields of medicine and technology, and the subsequent fight for control, it is essential to promote a broad collaboration among all those working in health care and politics that extends well beyond national borders,” the pope said.  

AI not a substitute for ‘human encounter’ in medicine 

Pope Leo underlined that “technological devices must never detract from the personal relationship between patients and health care providers.”

“If AI is to serve human dignity and the effective provision of health care, we must ensure that it truly enhances both interpersonal relationships and the care provided,” he said.

Leo described the new technological advancements brought by AI as “more pervasive” than those brought by the industrial revolution, noting their potential to alter “our understanding of situations and how we perceive ourselves and others.”

“We currently interact with machines as if they were interlocutors, and thus become almost an extension of them,” he said. “In this sense, we not only run the risk of losing sight of the faces of the people around us but of forgetting how to recognize and cherish all that is truly human.” 

The three-day Vatican conference on AI and medicine, running Nov. 10–12, is one of several in recent months addressing the ethics of AI — an issue Pope Leo XIV has signaled will be a priority in his pontificate.

At the Builders AI Forum in Rome last week, which addressed the challenge of AI for Catholics and Catholic institutions in a variety of fields, medical school professors, health care company executives, insurance company directors, medical chaplains, and entrepreneurs in the field came together to discuss and debate the future of AI in Catholic health care. 

Louis Kim, the former vice president of personal systems and AI at HP, shared that the consensus among these professionals at the end of the forum was that “AI may assist but must never substitute for human encounter [in Catholic health care] and must remain clearly identifiable as non-human so that the pastoral and sacramental integrity of care is preserved.” 

Daniel J. Daly, executive director of the Center for Theology and Ethics in Catholic Health and an associate professor of moral theology at Boston College, told CNA he is concerned that if AI models used in Catholic hospitals are only trained to maximize “efficiency and profit” it could lead to “a massive failure for Catholic health care.” 

“What I worry about is that what could happen in health care is that AI replaces that embodied witness to the kingdom of God,” Daly said. “That can never happen in Catholic health care, because Catholic health care is not just about medicine. It’s also about Jesus Christ and witnessing to his healing ministry that we see in the Scripture.” 

“I think the most important thing is that whatever the AI does, that it frees us to do the works of mercy, it doesn’t free us from the works of mercy,” he added. “That is, it doesn’t replace the embodied care and ministerial care that we provide through medicine.”