_id	reporting_period	source_order	complication_icd10_code	complication_description	percentage_of_delivery_episodes	denominator_scope	overlap_note	source_context_note	geography	unit	source	source_release	source_file	source_sheet
1	2024-25	1	O70	Perineal laceration during delivery	35	All finished delivery episodes in England	A delivery episode may have no recorded complication or more than one complication; percentages must not be summed.	Complications from earlier in pregnancy may be recorded when relevant to care during the delivery episode.	England	percent	Hospital Episode Statistics (HES), NHS England	NHS Maternity Statistics, 2024-25	hosp-epis-stat-mat-summary-tables-2425.xlsx	Summary report 6
2	2024-25	2	O36	Maternal care for other known or suspected fetal problems	32	All finished delivery episodes in England	A delivery episode may have no recorded complication or more than one complication; percentages must not be summed.	Complications from earlier in pregnancy may be recorded when relevant to care during the delivery episode.	England	percent	Hospital Episode Statistics (HES), NHS England	NHS Maternity Statistics, 2024-25	hosp-epis-stat-mat-summary-tables-2425.xlsx	Summary report 6
3	2024-25	3	O99	Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium	29	All finished delivery episodes in England	A delivery episode may have no recorded complication or more than one complication; percentages must not be summed.	Complications from earlier in pregnancy may be recorded when relevant to care during the delivery episode.	England	percent	Hospital Episode Statistics (HES), NHS England	NHS Maternity Statistics, 2024-25	hosp-epis-stat-mat-summary-tables-2425.xlsx	Summary report 6
4	2024-25	4	O68	Labour and delivery complicated by fetal stress [distress]	29	All finished delivery episodes in England	A delivery episode may have no recorded complication or more than one complication; percentages must not be summed.	Complications from earlier in pregnancy may be recorded when relevant to care during the delivery episode.	England	percent	Hospital Episode Statistics (HES), NHS England	NHS Maternity Statistics, 2024-25	hosp-epis-stat-mat-summary-tables-2425.xlsx	Summary report 6
5	2024-25	5	O72	Postpartum haemorrhage	27	All finished delivery episodes in England	A delivery episode may have no recorded complication or more than one complication; percentages must not be summed.	Complications from earlier in pregnancy may be recorded when relevant to care during the delivery episode.	England	percent	Hospital Episode Statistics (HES), NHS England	NHS Maternity Statistics, 2024-25	hosp-epis-stat-mat-summary-tables-2425.xlsx	Summary report 6