Source Code Name Case count Share of cases (%)
INPAT INPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 6416
INPAT INPAT_ICD10(O631) Prolonged second stage (of labour) 3351
INPAT INPAT_ICD10(O60) Preterm labour 2978
INPAT INPAT_ICD10(O701) Second degree perineal laceration during delivery 2761
INPAT INPAT_ICD10(O721) Other immediate postpartum haemorrhage 2628
INPAT INPAT_ICD10(O630) Prolonged first stage (of labour) 2366
INPAT INPAT_ICD10(O720) Third-stage haemorrhage 2295
INPAT INPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 2213
INPAT INPAT_ICD10(O641) Obstructed labour due to breech presentation 1568
INPAT INPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 1303
OUTPAT OUTPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1095
INPAT INPAT_ICD10(O750) Maternal distress during labour and delivery 1093
INPAT INPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1077
INPAT INPAT_ICD10(O610) Failed medical induction of labour 1006
INPAT INPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 867
INPAT INPAT_ICD10(O700) First degree perineal laceration during delivery 749
INPAT INPAT_ICD10(O730) Retained placenta without haemorrhage 747
INPAT INPAT_ICD10(O621) Secondary uterine inertia 710
INPAT INPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 601
OUTPAT OUTPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 571
INPAT INPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 552
INPAT INPAT_ICD10(O702) Third degree perineal laceration during delivery 542
INPAT INPAT_ICD10(O714) Obstetric high vaginal laceration alone 518
INPAT INPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 517
INPAT INPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 512
INPAT INPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 495
INPAT INPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 495
INPAT INPAT_ICD10(O620) Primary inadequate contractions 453
INPAT INPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 408
INPAT INPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 308
OUTPAT OUTPAT_ICD10(O702) Third degree perineal laceration during delivery 277
OUTPAT OUTPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 274
OUTPAT OUTPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 265
INPAT INPAT_ICD10(O622) Other uterine inertia 263
INPAT INPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 251
INPAT INPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 247
INPAT INPAT_ICD10(O757) Vaginal delivery following previous caesarean section 243
INPAT INPAT_ICD10(O611) Failed instrumental induction of labour 230
OUTPAT OUTPAT_ICD10(O701) Second degree perineal laceration during delivery 225
INPAT INPAT_ICD10(O662) Obstructed labour due to unusually large fetus 203
INPAT INPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 184
INPAT INPAT_ICD10(O618) Other failed induction of labour 171
INPAT INPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 170
OUTPAT OUTPAT_ICD10(O60) Preterm labour 169
INPAT INPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 167
INPAT INPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 163
INPAT INPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 163
OUTPAT OUTPAT_ICD10(O720) Third-stage haemorrhage 152
INPAT INPAT_ICD10(O713) Obstetric laceration of cervix 149
INPAT INPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 148
INPAT INPAT_ICD10(O623) Precipitate labour 147
INPAT INPAT_ICD10(O753) Other infection during labour 140
INPAT INPAT_ICD10(O643) Obstructed labour due to brow presentation 137
OUTPAT OUTPAT_ICD10(O721) Other immediate postpartum haemorrhage 137
INPAT INPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 126
OUTPAT OUTPAT_ICD10(O700) First degree perineal laceration during delivery 126
INPAT INPAT_ICD10(O717) Obstetric haematoma of pelvis 122
OUTPAT OUTPAT_ICD10(O631) Prolonged second stage (of labour) 120
INPAT INPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 117
INPAT INPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 97
INPAT INPAT_ICD10(O668) Other specified obstructed labour 96
OUTPAT OUTPAT_ICD10(O730) Retained placenta without haemorrhage 95
OUTPAT OUTPAT_ICD10(O641) Obstructed labour due to breech presentation 92
INPAT INPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 91
INPAT INPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 90
INPAT INPAT_ICD10(O664) Failed trial of labour, unspecified 87
INPAT INPAT_ICD10(O669) Obstructed labour, unspecified 87
INPAT INPAT_ICD10(O678) Other intrapartum haemorrhage 82
INPAT INPAT_ICD10(O711) Rupture of uterus during labour 80
OUTPAT OUTPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 80
INPAT INPAT_ICD10(O642) Obstructed labour due to face presentation 79
OUTPAT OUTPAT_ICD10(O630) Prolonged first stage (of labour) 77
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O722) Delayed and secondary postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 74
OUTPAT OUTPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 72
OUTPAT OUTPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 70
INPAT INPAT_ICD10(O698) Labour and delivery complicated by other cord complications 68
INPAT INPAT_ICD10(O619) Failed induction of labour, unspecified 66
INPAT INPAT_ICD10(O703) Fourth degree perineal laceration during delivery 64
OUTPAT OUTPAT_ICD10(O610) Failed medical induction of labour 64
INPAT INPAT_ICD10(O755) Delayed delivery after artificial rupture of membranes 58
INPAT INPAT_ICD10(O718) Other specified obstetric trauma 57
OUTPAT OUTPAT_ICD10(O750) Maternal distress during labour and delivery 53
INPAT INPAT_ICD10(O644) Obstructed labour due to shoulder presentation 52
OUTPAT OUTPAT_ICD10(O703) Fourth degree perineal laceration during delivery 52
INPAT INPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 49
INPAT INPAT_ICD10(O650) Obstructed labour due to deformed pelvis 47
INPAT INPAT_ICD10(O629) Abnormality of forces of labour, unspecified 41
OUTPAT OUTPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 41
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O72) Postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 38
INPAT INPAT_ICD10(O639) Long labour, unspecified 35
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 35
OUTPAT OUTPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 33
OUTPAT OUTPAT_ICD10(O717) Obstetric haematoma of pelvis 33
INPAT INPAT_ICD10(O709) Perineal laceration during delivery, unspecified 32
OUTPAT OUTPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 32
INPAT INPAT_ICD10(O645) Obstructed labour due to compound presentation 30
OUTPAT OUTPAT_ICD10(O611) Failed instrumental induction of labour 30
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O62) Abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 29
INPAT INPAT_ICD10(O710) Rupture of uterus before onset of labour 28
OUTPAT OUTPAT_ICD10(O621) Secondary uterine inertia 27
INPAT INPAT_ICD10(O693) Labour and delivery complicated by short cord 26
OUTPAT OUTPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 26
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O721) Other immediate postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 25
INPAT INPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 24
INPAT INPAT_ICD10(O659) Obstructed labour due to maternal pelvic abnormality, unspecified 23
OUTPAT OUTPAT_ICD10(O709) Perineal laceration during delivery, unspecified 23
OUTPAT OUTPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 23
OUTPAT OUTPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 22
INPAT INPAT_ICD10(O658) Obstructed labour due to other maternal pelvic abnormalities 21
INPAT INPAT_ICD10(O723) Postpartum coagulation defects 20
OUTPAT OUTPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 20
INPAT INPAT_ICD10(O699) Labour and delivery complicated by cord complication, unspecified 19
INPAT INPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 18
OUTPAT OUTPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 18
INPAT INPAT_ICD10(O628) Other abnormalities of forces of labour 17
INPAT INPAT_ICD10(O758) Other specified complications of labour and delivery 17
OUTPAT OUTPAT_ICD10(O618) Other failed induction of labour 17
OUTPAT OUTPAT_ICD10(O620) Primary inadequate contractions 17
OUTPAT OUTPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 17
OUTPAT OUTPAT_ICD10(O718) Other specified obstetric trauma 17
INPAT INPAT_ICD10(O715) Other obstetric injury to pelvic organs 16
OUTPAT OUTPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 16
INPAT INPAT_ICD10(O632) Delayed delivery of second twin, triplet, etc. 15
OUTPAT OUTPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 15
OUTPAT OUTPAT_ICD10(O714) Obstetric high vaginal laceration alone 15
OUTPAT OUTPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 14
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O709) Perineal laceration during delivery, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 14
OUTPAT OUTPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 13
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O629) Abnormality of forces of labour, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 13
INPAT INPAT_ICD10(O719) Obstetric trauma, unspecified 12
OUTPAT OUTPAT_ICD10(O623) Precipitate labour 12
OUTPAT OUTPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 11
OUTPAT OUTPAT_ICD10(O757) Vaginal delivery following previous caesarean section 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O641) Obstructed labour due to breech presentation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
INPAT INPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 10
INPAT INPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 10
OUTPAT OUTPAT_ICD10(O669) Obstructed labour, unspecified 10
OUTPAT OUTPAT_ICD10(O710) Rupture of uterus before onset of labour 10
OUTPAT OUTPAT_ICD10(O711) Rupture of uterus during labour 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O60) Preterm labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O701) Second degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 10
INPAT INPAT_ICD10(O754) Other complications of obstetric surgery and procedures 9
OUTPAT OUTPAT_ICD10(O713) Obstetric laceration of cervix 9
OUTPAT OUTPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 9
OUTPAT OUTPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 9
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O622) Other uterine inertia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 9
OUTPAT OUTPAT_ICD10(O622) Other uterine inertia 8
OUTPAT OUTPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 8
OUTPAT OUTPAT_ICD10(O650) Obstructed labour due to deformed pelvis 8
OUTPAT OUTPAT_ICD10(O662) Obstructed labour due to unusually large fetus 8
OUTPAT OUTPAT_ICD10(O668) Other specified obstructed labour 8
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 8
INPAT INPAT_ICD10(O712) Postpartum inversion of uterus 7
OUTPAT OUTPAT_ICD10(O639) Long labour, unspecified 7
OUTPAT OUTPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 7
OUTPAT OUTPAT_ICD10(O723) Postpartum coagulation defects 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O716) Obstetric damage to pelvic joints and ligaments. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O718) Other specified obstetric trauma. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O719) Obstetric trauma, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O720) Third-stage haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
INPAT INPAT_ICD10(O759) Complication of labour and delivery, unspecified 6
OUTPAT OUTPAT_ICD10(O644) Obstructed labour due to shoulder presentation 6
OUTPAT OUTPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 6
OUTPAT OUTPAT_ICD10(O678) Other intrapartum haemorrhage 6
OUTPAT OUTPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 6
OUTPAT OUTPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 6
OUTPAT OUTPAT_ICD10(O754) Other complications of obstetric surgery and procedures 6
INPAT INPAT_ICD10(O748) Other complications of anaesthesia during labour and delivery 5
OUTPAT OUTPAT_ICD10(O619) Failed induction of labour, unspecified 5
OUTPAT OUTPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 5
OUTPAT OUTPAT_ICD10(O664) Failed trial of labour, unspecified 5
OUTPAT OUTPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 5
OUTPAT OUTPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 5
OUTPAT OUTPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 5
OUTPAT OUTPAT_ICD10(O72) Postpartum haemorrhage 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O628) Other abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5