Source Code Name Case count Share of cases (%)
INPAT INPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 9855
INPAT INPAT_ICD10(O631) Prolonged second stage (of labour) 5222
INPAT INPAT_ICD10(O701) Second degree perineal laceration during delivery 4748
INPAT INPAT_ICD10(O60) Preterm labour 4409
INPAT INPAT_ICD10(O721) Other immediate postpartum haemorrhage 4160
INPAT INPAT_ICD10(O720) Third-stage haemorrhage 3746
INPAT INPAT_ICD10(O630) Prolonged first stage (of labour) 3636
INPAT INPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 3462
INPAT INPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 2370
INPAT INPAT_ICD10(O641) Obstructed labour due to breech presentation 2304
OUTPAT OUTPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1766
INPAT INPAT_ICD10(O750) Maternal distress during labour and delivery 1675
INPAT INPAT_ICD10(O610) Failed medical induction of labour 1611
INPAT INPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1417
INPAT INPAT_ICD10(O700) First degree perineal laceration during delivery 1361
INPAT INPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 1235
INPAT INPAT_ICD10(O730) Retained placenta without haemorrhage 1133
OUTPAT OUTPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 1130
INPAT INPAT_ICD10(O621) Secondary uterine inertia 995
INPAT INPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 945
INPAT INPAT_ICD10(O714) Obstetric high vaginal laceration alone 908
INPAT INPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 808
INPAT INPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 802
INPAT INPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 775
INPAT INPAT_ICD10(O702) Third degree perineal laceration during delivery 739
INPAT INPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 705
INPAT INPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 681
INPAT INPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 655
INPAT INPAT_ICD10(O620) Primary inadequate contractions 646
OUTPAT OUTPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 499
INPAT INPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 494
INPAT INPAT_ICD10(O618) Other failed induction of labour 462
OUTPAT OUTPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 443
INPAT INPAT_ICD10(O757) Vaginal delivery following previous caesarean section 434
OUTPAT OUTPAT_ICD10(O701) Second degree perineal laceration during delivery 425
INPAT INPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 399
INPAT INPAT_ICD10(O611) Failed instrumental induction of labour 398
INPAT INPAT_ICD10(O622) Other uterine inertia 397
OUTPAT OUTPAT_ICD10(O702) Third degree perineal laceration during delivery 366
INPAT INPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 360
INPAT INPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 345
INPAT INPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 293
INPAT INPAT_ICD10(O662) Obstructed labour due to unusually large fetus 285
OUTPAT OUTPAT_ICD10(O60) Preterm labour 278
OUTPAT OUTPAT_ICD10(O720) Third-stage haemorrhage 275
INPAT INPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 262
INPAT INPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 251
OUTPAT OUTPAT_ICD10(O721) Other immediate postpartum haemorrhage 251
INPAT INPAT_ICD10(O623) Precipitate labour 231
INPAT INPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 231
OUTPAT OUTPAT_ICD10(O631) Prolonged second stage (of labour) 218
INPAT INPAT_ICD10(O713) Obstetric laceration of cervix 216
INPAT INPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 211
INPAT INPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 211
INPAT INPAT_ICD10(O753) Other infection during labour 210
INPAT INPAT_ICD10(O643) Obstructed labour due to brow presentation 202
OUTPAT OUTPAT_ICD10(O730) Retained placenta without haemorrhage 183
INPAT INPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 181
OUTPAT OUTPAT_ICD10(O641) Obstructed labour due to breech presentation 179
OUTPAT OUTPAT_ICD10(O700) First degree perineal laceration during delivery 178
INPAT INPAT_ICD10(O717) Obstetric haematoma of pelvis 172
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O722) Delayed and secondary postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 168
OUTPAT OUTPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 158
OUTPAT OUTPAT_ICD10(O630) Prolonged first stage (of labour) 156
INPAT INPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 150
OUTPAT OUTPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 142
INPAT INPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 139
INPAT INPAT_ICD10(O668) Other specified obstructed labour 135
OUTPAT OUTPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 135
INPAT INPAT_ICD10(O664) Failed trial of labour, unspecified 134
INPAT INPAT_ICD10(O709) Perineal laceration during delivery, unspecified 128
INPAT INPAT_ICD10(O711) Rupture of uterus during labour 126
INPAT INPAT_ICD10(O669) Obstructed labour, unspecified 124
OUTPAT OUTPAT_ICD10(O610) Failed medical induction of labour 123
INPAT INPAT_ICD10(O678) Other intrapartum haemorrhage 121
INPAT INPAT_ICD10(O642) Obstructed labour due to face presentation 120
INPAT INPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 114
OUTPAT OUTPAT_ICD10(O714) Obstetric high vaginal laceration alone 107
INPAT INPAT_ICD10(O698) Labour and delivery complicated by other cord complications 98
INPAT INPAT_ICD10(O718) Other specified obstetric trauma 95
INPAT INPAT_ICD10(O703) Fourth degree perineal laceration during delivery 88
INPAT INPAT_ICD10(O619) Failed induction of labour, unspecified 87
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! 84
OUTPAT OUTPAT_ICD10(O750) Maternal distress during labour and delivery 83
INPAT INPAT_ICD10(O755) Delayed delivery after artificial rupture of membranes 80
INPAT INPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 77
INPAT INPAT_ICD10(O644) Obstructed labour due to shoulder presentation 75
OUTPAT OUTPAT_ICD10(O709) Perineal laceration during delivery, unspecified 73
OUTPAT OUTPAT_ICD10(O703) Fourth degree perineal laceration during delivery 71
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O701) Second degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 68
OUTPAT OUTPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 66
INPAT INPAT_ICD10(O650) Obstructed labour due to deformed pelvis 64
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 62
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O72) Postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 58
INPAT INPAT_ICD10(O629) Abnormality of forces of labour, unspecified 55
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O62) Abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 53
OUTPAT OUTPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 52
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 52
INPAT INPAT_ICD10(O645) Obstructed labour due to compound presentation 50
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O721) Other immediate postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 50
INPAT INPAT_ICD10(O639) Long labour, unspecified 49
OUTPAT OUTPAT_ICD10(O717) Obstetric haematoma of pelvis 49
OUTPAT OUTPAT_ICD10(O621) Secondary uterine inertia 46
OUTPAT OUTPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 46
INPAT INPAT_ICD10(O710) Rupture of uterus before onset of labour 45
OUTPAT OUTPAT_ICD10(O611) Failed instrumental induction of labour 45
OUTPAT OUTPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 42
INPAT INPAT_ICD10(O693) Labour and delivery complicated by short cord 41
OUTPAT OUTPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 38
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O60) Preterm labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 38
INPAT INPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 37
OUTPAT OUTPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 35
OUTPAT OUTPAT_ICD10(O618) Other failed induction of labour 34
OUTPAT OUTPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 34
INPAT INPAT_ICD10(O658) Obstructed labour due to other maternal pelvic abnormalities 32
INPAT INPAT_ICD10(O699) Labour and delivery complicated by cord complication, unspecified 32
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O631) Prolonged second stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 32
OUTPAT OUTPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 29
INPAT INPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 28
OUTPAT OUTPAT_ICD10(O623) Precipitate labour 28
OUTPAT OUTPAT_ICD10(O718) Other specified obstetric trauma 28
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O641) Obstructed labour due to breech presentation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 28
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O720) Third-stage haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 28
OUTPAT OUTPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 27
INPAT INPAT_ICD10(O659) Obstructed labour due to maternal pelvic abnormality, unspecified 26
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O709) Perineal laceration during delivery, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 26
INPAT INPAT_ICD10(O715) Other obstetric injury to pelvic organs 25
INPAT INPAT_ICD10(O723) Postpartum coagulation defects 25
OUTPAT OUTPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 25
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O629) Abnormality of forces of labour, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 25
OUTPAT OUTPAT_ICD10(O757) Vaginal delivery following previous caesarean section 24
INPAT INPAT_ICD10(O628) Other abnormalities of forces of labour 23
OUTPAT OUTPAT_ICD10(O620) Primary inadequate contractions 23
OUTPAT OUTPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 23
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O630) Prolonged first stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 23
INPAT INPAT_ICD10(O632) Delayed delivery of second twin, triplet, etc. 21
INPAT INPAT_ICD10(O758) Other specified complications of labour and delivery 21
OUTPAT OUTPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 21
OUTPAT OUTPAT_ICD10(O713) Obstetric laceration of cervix 21
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 21
OUTPAT OUTPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 20
OUTPAT OUTPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 20
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! 20
OUTPAT OUTPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 19
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O718) Other specified obstetric trauma. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 19
INPAT INPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 18
OUTPAT OUTPAT_ICD10(O622) Other uterine inertia 18
OUTPAT OUTPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 18
INPAT INPAT_ICD10(O719) Obstetric trauma, unspecified 17
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O622) Other uterine inertia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 17
OUTPAT OUTPAT_ICD10(O662) Obstructed labour due to unusually large fetus 16
OUTPAT OUTPAT_ICD10(O669) Obstructed labour, unspecified 16
OUTPAT OUTPAT_ICD10(O711) Rupture of uterus during labour 16
OUTPAT OUTPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 16
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O700) First degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 16
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 16
OUTPAT OUTPAT_ICD10(O710) Rupture of uterus before onset of labour 15
OUTPAT OUTPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 15
INPAT INPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 14
OUTPAT OUTPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 14
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! 14
INPAT INPAT_ICD10(O754) Other complications of obstetric surgery and procedures 13
OUTPAT OUTPAT_ICD10(O668) Other specified obstructed labour 13
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O610) Failed medical induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 13
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O611) Failed instrumental induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 13
INPAT INPAT_ICD10(O712) Postpartum inversion of uterus 12
OUTPAT OUTPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 12
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O719) Obstetric trauma, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 12
OUTPAT OUTPAT_ICD10(O639) Long labour, unspecified 11
OUTPAT OUTPAT_ICD10(O650) Obstructed labour due to deformed pelvis 11
INPAT INPAT_ICD10(O663) Obstructed labour due to other abnormalities of fetus 10
OUTPAT OUTPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 10
OUTPAT OUTPAT_ICD10(O72) Postpartum haemorrhage 10
OUTPAT OUTPAT_ICD10(O754) Other complications of obstetric surgery and procedures 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O628) Other abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 10
INPAT INPAT_ICD10(O759) Complication of labour and delivery, unspecified 9
OUTPAT OUTPAT_ICD10(O619) Failed induction of labour, unspecified 9
OUTPAT OUTPAT_ICD10(O723) Postpartum coagulation defects 9
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! 9
INPAT INPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 8
OUTPAT OUTPAT_ICD10(O644) Obstructed labour due to shoulder presentation 8
OUTPAT OUTPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 8
OUTPAT OUTPAT_ICD10(O678) Other intrapartum haemorrhage 7
OUTPAT OUTPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 7
OUTPAT OUTPAT_ICD10(O753) Other infection during labour 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O702) Third degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O730) Retained placenta without haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 7
OUTPAT OUTPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 6
OUTPAT OUTPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O70) Perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
INPAT INPAT_ICD10(O748) Other complications of anaesthesia during labour and delivery 5
OUTPAT OUTPAT_ICD10(O628) Other abnormalities of forces of labour 5
OUTPAT OUTPAT_ICD10(O664) Failed trial of labour, unspecified 5
OUTPAT OUTPAT_ICD10(O719) Obstetric trauma, unspecified 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O621) Secondary uterine inertia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O639) Long labour, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O64) Obstructed labour due to malposition and malpresentation of fetus. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O660) Obstructed labour due to shoulder dystocia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O713) Obstetric laceration of cervix. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O750) Maternal distress during labour and delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5