Assessing Hospital Surgical Functions in South Korea: A Functional Analysis Using the Disease Control Priorities, 3rd edition Essential Surgery List (2013-2022).

Abstract

Objectives: South Korea has achieved near-universal health coverage through a predominantly privatized healthcare system. However, this structural fragmentation has created significant ambiguity regarding the roles of different healthcare organizations, particularly in ensuring equitable provision of essential surgical services across geographic and institutional boundaries.

Methods: We conducted a retrospective study using the full national health insurance claims database provided by the Health Insurance Review & Assessment Service (2013-2022). Essential surgical procedures from the Disease Control Priorities, 3rd edition Essential Surgery List were mapped to insurance claims codes, and their provision was analyzed across healthcare facilities and regions. Functional capacity was defined using minimum annual volume thresholds of 12, 24, 60, and 120 procedures.

Results: Essential surgery more than doubled between 2013 and 2022, increasing from 2.79 million to nearly 6 million cases. Superior general hospitals and general hospitals consistently delivered high volumes of essential surgeries, while hospital-level facilities experienced marked functional decline, particularly in obstetric services. We observed increasing centralization of surgical services in higher-tier and metropolitan facilities, alongside selective decentralization for lower-risk procedures such as cataract surgery. Regional disparities were especially pronounced for obstetric care.

Conclusions: Functional capacity for essential surgery remains highly uneven across hospitals and regions, undermining equitable access. Policy efforts should focus on strengthening lower-tier hospitals in underserved areas and implementing minimum functionality standards tailored to local needs. Clarifying institutional roles within South Korea's mixed healthcare system is essential to improving accountability and ensuring equitable distribution of essential surgical services.