Multimorbid patients who enter English NHS hospitals are frequently subject to care pathways designed to assess, diagnose and treat single medical conditions. Opportunities are thereby lost to offer patients more holistic, person-centred care. Hospital organisations elsewhere are known to use in-hospital, multi-specialty, integrated clinical care (ICC) to overcome this problem. This perspective piece aims to critically discuss barriers to implementing this form of ICC in the English NHS focusing on six key areas: information technologies, the primary–secondary care interface, internal hospital processes, finance, workload, professional roles and behaviours. Integrated care programmes currently underway are largely focused on macro (system) and meso (organisational) levels. A micro (clinical) level ICC, offering highly coordinated multispecialty expertise to multimorbid hospital patients could fill an important gap in the current care pathways.