Professional duty, public responsibility, and expert judgment in Ottoman Constantinople: the Gazette médicale d’Orient, 1857–1876

Nineteenth-century medical ethics is often reconstructed through formal codes or retrospectively interpreted through concepts developed by twentieth-century bioethics. This study examines how duties, limits of professional authority, and responsibilities toward patients, colleagues, the public, and state institutions were articulated within the French-language Gazette–Société professional milieu in Constantinople between 1857 and 1876. We conducted a structured historical qualitative content analysis of digitized issues and annual volumes. Candidate texts were screened for sustained actor-level normative reasoning rather than contemporary ethical salience alone. Only E2 (substantial embedded normative reasoning) and E3 (explicit sustained ethical/deontological argument) records entered the analytical corpus. Included publication units were coded into nine primary themes and five source-origin categories, with serial/duplicate reconciliation, source-coverage auditing, and repeated boundary review. The analytical corpus contained 251 verified units: 118 E3 and 133 E2. Professional identity, deontology, and self-regulation was the largest primary category (109/251), followed by public-health governance and regulation (58/251). The remaining verified units were distributed across assistance and social obligation, medico-legal and expert responsibility, therapeutic responsibility, duties concerning the scientific record and publication, mental-health and institutional authority, patient/family decision-making, and professional secrecy. Because source coverage is uneven, the study does not interpret differences in the numbers recovered from the three descriptive intervals as temporal increases or decreases in ethical discussion. Within the Gazette–Société milieu, medical ethics appeared as an embedded normative practice rather than a discrete specialty. Across the available material, professional authority was articulated through historically specific languages of duty, dignity, conscience, morality, humanity, honour, and responsibility in professional, clinical, sanitary, forensic, humanitarian, and communicative settings. These findings characterize a particular institutional and linguistic professional arena and are not presented as representative of medical ethics throughout the Ottoman Empire. Not applicable.