Ten More Years of Maternity Claims: What Can We Learn from Another Decade of NHS Litigation Data About Mode of Delivery, Informed Consent, and Patient Safety?

IntroductionObstetric litigation is the largest single category of NHS clinical negligence by cost. The last systematic analysis of NHS obstetric litigation data was published in 2012 [1]. Despite major national safety programmes, annual costs have continued to escalate. This study aims to update the analysis and consider ethical and resource implications. MethodsFOI claims data were obtained from NHS Resolution for 2015/16-2024/25, supplemented by cerebral palsy and brain damage (CP/BD) data for the most recent six years. Activity-weighted HRG unit costs for 2024/25 and 2023/24 were used to compare planned vaginal birth (PVB) and planned caesarean section (PCS) pathway costs, incorporating indemnity attribution by cause-code proportion. The consent architecture was reviewed against Montgomery v Lanarkshire Health Board [2015] UKSC 11. ResultsOver the period, 11,881 claims were notified (approximately one per 500 England NHS births); 7,216 were settled, with total damages of {pound}5,974 million, rising approximately 85% in real terms. Four intrapartum monitoring failure codes and seven labour-exclusive delivery complication codes together accounted for {pound}2,776 million paid (55.9% of all obstetric damages). CP/BD claims represented 16.6% of volume but 77.7% of obstetric damages over 2019/20-2024/25, at an average of {pound}3.58 million per claim. Activity-weighted HRG analysis at 2024/25 tariff showed PCS at {pound}6,202 versus PVB at {pound}6,339 per birth. ConclusionsObstetric litigation costs continue to escalate, driven overwhelmingly by labour-attributable harm. NHS England data show, for the first time, PCS tariff costs below PVB. Including indemnity under the primary eleven-code attribution, total system cost excess of PVB reaches approximately {pound}1,032-{pound}3,082 per birth (2024/25 cash to actuarial basis). Consent architecture for planned mode of delivery raises a potential inconsistency with Montgomery. Key messagesO_ST_ABSWhat is already known on this topicC_ST_ABSObstetric litigation is the largest single category of NHS clinical negligence by cost, driven overwhelmingly by intrapartum harm, yet no systematic analysis of cause-code data has been published since 2012. What this study addsTen years of NHS Resolution FOI data show that eleven labour-exclusive cause codes account for 55.9% of obstetric damages; NHS England tariff data show, for the first time, that planned caesarean section ({pound}6,202) is less costly than the planned vaginal birth pathway ({pound}6,339), and when indemnity is included the total system cost excess of planned vaginal birth reaches {pound}1,032-{pound}3,082 per birth. How this study might affect research, practice or policyA formal comparative-risk consent process at booking, equivalent to that currently required for planned caesarean section under RCOG Consent Advice No. 14, should be considered standard for all women; NICE should update its economic analysis of mode of delivery to incorporate litigation costs; and NHS tariff methodology should be reviewed to ensure indemnity is allocated in proportion to the pathway-level mechanisms that generate it.