Source Code Name Case count Share of cases (%)
INPAT INPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 8303
INPAT INPAT_ICD10(O631) Prolonged second stage (of labour) 4417
INPAT INPAT_ICD10(O60) Preterm labour 3842
INPAT INPAT_ICD10(O701) Second degree perineal laceration during delivery 3681
INPAT INPAT_ICD10(O721) Other immediate postpartum haemorrhage 3445
INPAT INPAT_ICD10(O630) Prolonged first stage (of labour) 3113
INPAT INPAT_ICD10(O720) Third-stage haemorrhage 3056
INPAT INPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 2919
INPAT INPAT_ICD10(O641) Obstructed labour due to breech presentation 1989
INPAT INPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 1784
OUTPAT OUTPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1498
INPAT INPAT_ICD10(O750) Maternal distress during labour and delivery 1427
INPAT INPAT_ICD10(O610) Failed medical induction of labour 1328
INPAT INPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1253
INPAT INPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 1120
INPAT INPAT_ICD10(O700) First degree perineal laceration during delivery 1035
INPAT INPAT_ICD10(O730) Retained placenta without haemorrhage 975
INPAT INPAT_ICD10(O621) Secondary uterine inertia 887
OUTPAT OUTPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 804
INPAT INPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 802
INPAT INPAT_ICD10(O714) Obstetric high vaginal laceration alone 714
INPAT INPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 704
INPAT INPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 677
INPAT INPAT_ICD10(O702) Third degree perineal laceration during delivery 674
INPAT INPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 659
INPAT INPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 632
INPAT INPAT_ICD10(O620) Primary inadequate contractions 585
INPAT INPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 585
INPAT INPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 556
INPAT INPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 397
OUTPAT OUTPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 388
OUTPAT OUTPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 381
INPAT INPAT_ICD10(O622) Other uterine inertia 347
OUTPAT OUTPAT_ICD10(O702) Third degree perineal laceration during delivery 337
INPAT INPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 329
INPAT INPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 325
INPAT INPAT_ICD10(O757) Vaginal delivery following previous caesarean section 324
OUTPAT OUTPAT_ICD10(O701) Second degree perineal laceration during delivery 322
INPAT INPAT_ICD10(O611) Failed instrumental induction of labour 296
INPAT INPAT_ICD10(O618) Other failed induction of labour 281
INPAT INPAT_ICD10(O662) Obstructed labour due to unusually large fetus 254
INPAT INPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 245
INPAT INPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 239
OUTPAT OUTPAT_ICD10(O60) Preterm labour 235
INPAT INPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 233
OUTPAT OUTPAT_ICD10(O720) Third-stage haemorrhage 224
INPAT INPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 211
INPAT INPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 197
OUTPAT OUTPAT_ICD10(O721) Other immediate postpartum haemorrhage 197
INPAT INPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 193
INPAT INPAT_ICD10(O713) Obstetric laceration of cervix 188
INPAT INPAT_ICD10(O623) Precipitate labour 185
INPAT INPAT_ICD10(O753) Other infection during labour 184
INPAT INPAT_ICD10(O643) Obstructed labour due to brow presentation 175
INPAT INPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 172
OUTPAT OUTPAT_ICD10(O700) First degree perineal laceration during delivery 163
OUTPAT OUTPAT_ICD10(O631) Prolonged second stage (of labour) 161
INPAT INPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 157
INPAT INPAT_ICD10(O717) Obstetric haematoma of pelvis 152
OUTPAT OUTPAT_ICD10(O730) Retained placenta without haemorrhage 148
OUTPAT OUTPAT_ICD10(O641) Obstructed labour due to breech presentation 134
INPAT INPAT_ICD10(O668) Other specified obstructed labour 128
OUTPAT OUTPAT_ICD10(O630) Prolonged first stage (of labour) 123
INPAT INPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 122
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O722) Delayed and secondary postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 116
INPAT INPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 115
INPAT INPAT_ICD10(O669) Obstructed labour, unspecified 115
INPAT INPAT_ICD10(O664) Failed trial of labour, unspecified 114
OUTPAT OUTPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 113
INPAT INPAT_ICD10(O711) Rupture of uterus during labour 110
OUTPAT OUTPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 108
INPAT INPAT_ICD10(O642) Obstructed labour due to face presentation 106
OUTPAT OUTPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 106
INPAT INPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 105
INPAT INPAT_ICD10(O678) Other intrapartum haemorrhage 104
OUTPAT OUTPAT_ICD10(O610) Failed medical induction of labour 97
INPAT INPAT_ICD10(O698) Labour and delivery complicated by other cord complications 90
INPAT INPAT_ICD10(O619) Failed induction of labour, unspecified 80
INPAT INPAT_ICD10(O703) Fourth degree perineal laceration during delivery 79
INPAT INPAT_ICD10(O718) Other specified obstetric trauma 77
OUTPAT OUTPAT_ICD10(O750) Maternal distress during labour and delivery 72
INPAT INPAT_ICD10(O644) Obstructed labour due to shoulder presentation 70
INPAT INPAT_ICD10(O755) Delayed delivery after artificial rupture of membranes 65
INPAT INPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 63
OUTPAT OUTPAT_ICD10(O703) Fourth degree perineal laceration during delivery 63
INPAT INPAT_ICD10(O709) Perineal laceration during delivery, unspecified 60
INPAT INPAT_ICD10(O650) Obstructed labour due to deformed pelvis 59
OUTPAT OUTPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 53
INPAT INPAT_ICD10(O629) Abnormality of forces of labour, unspecified 49
OUTPAT OUTPAT_ICD10(O714) Obstetric high vaginal laceration alone 48
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 48
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O72) Postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 48
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! 47
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O62) Abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 45
OUTPAT OUTPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 44
INPAT INPAT_ICD10(O639) Long labour, unspecified 43
OUTPAT OUTPAT_ICD10(O709) Perineal laceration during delivery, unspecified 43
OUTPAT OUTPAT_ICD10(O717) Obstetric haematoma of pelvis 43
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O701) Second degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 42
OUTPAT OUTPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 41
INPAT INPAT_ICD10(O693) Labour and delivery complicated by short cord 40
INPAT INPAT_ICD10(O645) Obstructed labour due to compound presentation 39
INPAT INPAT_ICD10(O710) Rupture of uterus before onset of labour 39
OUTPAT OUTPAT_ICD10(O621) Secondary uterine inertia 38
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O721) Other immediate postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 35
OUTPAT OUTPAT_ICD10(O611) Failed instrumental induction of labour 34
INPAT INPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 33
OUTPAT OUTPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 33
OUTPAT OUTPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 32
OUTPAT OUTPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 30
INPAT INPAT_ICD10(O658) Obstructed labour due to other maternal pelvic abnormalities 29
INPAT INPAT_ICD10(O699) Labour and delivery complicated by cord complication, unspecified 29
OUTPAT OUTPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 26
OUTPAT OUTPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 26
OUTPAT OUTPAT_ICD10(O618) Other failed induction of labour 25
INPAT INPAT_ICD10(O659) Obstructed labour due to maternal pelvic abnormality, unspecified 24
INPAT INPAT_ICD10(O723) Postpartum coagulation defects 24
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O60) Preterm labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 24
OUTPAT OUTPAT_ICD10(O620) Primary inadequate contractions 23
OUTPAT OUTPAT_ICD10(O718) Other specified obstetric trauma 23
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! 23
INPAT INPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 22
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O629) Abnormality of forces of labour, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 22
INPAT INPAT_ICD10(O758) Other specified complications of labour and delivery 21
OUTPAT OUTPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 21
OUTPAT OUTPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 21
INPAT INPAT_ICD10(O628) Other abnormalities of forces of labour 20
INPAT INPAT_ICD10(O715) Other obstetric injury to pelvic organs 20
OUTPAT OUTPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 20
OUTPAT OUTPAT_ICD10(O623) Precipitate labour 19
OUTPAT OUTPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 18
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O641) Obstructed labour due to breech presentation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 18
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O709) Perineal laceration during delivery, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 18
OUTPAT OUTPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 17
INPAT INPAT_ICD10(O632) Delayed delivery of second twin, triplet, etc. 16
INPAT INPAT_ICD10(O719) Obstetric trauma, unspecified 16
OUTPAT OUTPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 16
INPAT INPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 15
OUTPAT OUTPAT_ICD10(O757) Vaginal delivery following previous caesarean section 15
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O622) Other uterine inertia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 15
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O630) Prolonged first stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 15
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O631) Prolonged second stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 15
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O720) Third-stage haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 15
OUTPAT OUTPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 14
OUTPAT OUTPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 14
OUTPAT OUTPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 14
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! 14
OUTPAT OUTPAT_ICD10(O662) Obstructed labour due to unusually large fetus 13
OUTPAT OUTPAT_ICD10(O669) Obstructed labour, unspecified 13
OUTPAT OUTPAT_ICD10(O713) Obstetric laceration of cervix 13
OUTPAT OUTPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 13
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! 13
INPAT INPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 12
OUTPAT OUTPAT_ICD10(O668) Other specified obstructed labour 12
OUTPAT OUTPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 12
OUTPAT OUTPAT_ICD10(O710) Rupture of uterus before onset of labour 12
OUTPAT OUTPAT_ICD10(O711) Rupture of uterus during labour 12
INPAT INPAT_ICD10(O754) Other complications of obstetric surgery and procedures 11
OUTPAT OUTPAT_ICD10(O622) Other uterine inertia 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O700) First degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
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! 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O718) Other specified obstetric trauma. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O719) Obstetric trauma, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
OUTPAT OUTPAT_ICD10(O650) Obstructed labour due to deformed pelvis 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O610) Failed medical induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 10
INPAT INPAT_ICD10(O712) Postpartum inversion of uterus 9
INPAT INPAT_ICD10(O759) Complication of labour and delivery, unspecified 9
OUTPAT OUTPAT_ICD10(O639) Long labour, unspecified 9
OUTPAT OUTPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 9
OUTPAT OUTPAT_ICD10(O723) Postpartum coagulation defects 9
OUTPAT OUTPAT_ICD10(O644) Obstructed labour due to shoulder presentation 8
OUTPAT OUTPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 8
OUTPAT OUTPAT_ICD10(O72) Postpartum haemorrhage 8
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O628) Other abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 8
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! 8
OUTPAT OUTPAT_ICD10(O619) Failed induction of labour, unspecified 7
OUTPAT OUTPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 7
OUTPAT OUTPAT_ICD10(O754) Other complications of obstetric surgery and procedures 7
INPAT INPAT_ICD10(O663) Obstructed labour due to other abnormalities of fetus 6
INPAT INPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 6
OUTPAT OUTPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 6
OUTPAT OUTPAT_ICD10(O678) Other intrapartum haemorrhage 6
OUTPAT OUTPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O611) Failed instrumental induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
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! 6
INPAT INPAT_ICD10(O748) Other complications of anaesthesia during labour and delivery 5
OUTPAT OUTPAT_ICD10(O664) Failed trial of labour, unspecified 5
OUTPAT OUTPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 5
OUTPAT OUTPAT_ICD10(O753) Other infection during labour 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O70) Perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5