Source Code Name Case count Share of cases (%)
INPAT INPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 10156
INPAT INPAT_ICD10(O631) Prolonged second stage (of labour) 5336
INPAT INPAT_ICD10(O701) Second degree perineal laceration during delivery 5027
INPAT INPAT_ICD10(O60) Preterm labour 4482
INPAT INPAT_ICD10(O721) Other immediate postpartum haemorrhage 4349
INPAT INPAT_ICD10(O720) Third-stage haemorrhage 3941
INPAT INPAT_ICD10(O630) Prolonged first stage (of labour) 3722
INPAT INPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 3551
INPAT INPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 2516
INPAT INPAT_ICD10(O641) Obstructed labour due to breech presentation 2341
OUTPAT OUTPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1829
INPAT INPAT_ICD10(O750) Maternal distress during labour and delivery 1706
INPAT INPAT_ICD10(O610) Failed medical induction of labour 1670
INPAT INPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1437
INPAT INPAT_ICD10(O700) First degree perineal laceration during delivery 1433
INPAT INPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 1241
OUTPAT OUTPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 1233
INPAT INPAT_ICD10(O730) Retained placenta without haemorrhage 1155
INPAT INPAT_ICD10(O621) Secondary uterine inertia 1008
INPAT INPAT_ICD10(O714) Obstetric high vaginal laceration alone 965
INPAT INPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 958
INPAT INPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 830
INPAT INPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 810
INPAT INPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 788
INPAT INPAT_ICD10(O702) Third degree perineal laceration during delivery 739
INPAT INPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 709
INPAT INPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 705
INPAT INPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 666
INPAT INPAT_ICD10(O620) Primary inadequate contractions 648
INPAT INPAT_ICD10(O618) Other failed induction of labour 537
OUTPAT OUTPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 536
INPAT INPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 513
INPAT INPAT_ICD10(O757) Vaginal delivery following previous caesarean section 475
OUTPAT OUTPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 458
OUTPAT OUTPAT_ICD10(O701) Second degree perineal laceration during delivery 442
INPAT INPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 420
INPAT INPAT_ICD10(O611) Failed instrumental induction of labour 416
INPAT INPAT_ICD10(O622) Other uterine inertia 404
INPAT INPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 388
OUTPAT OUTPAT_ICD10(O702) Third degree perineal laceration during delivery 366
INPAT INPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 361
INPAT INPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 310
OUTPAT OUTPAT_ICD10(O720) Third-stage haemorrhage 291
INPAT INPAT_ICD10(O662) Obstructed labour due to unusually large fetus 288
OUTPAT OUTPAT_ICD10(O60) Preterm labour 283
INPAT INPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 264
OUTPAT OUTPAT_ICD10(O721) Other immediate postpartum haemorrhage 261
INPAT INPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 257
INPAT INPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 255
INPAT INPAT_ICD10(O623) Precipitate labour 249
OUTPAT OUTPAT_ICD10(O631) Prolonged second stage (of labour) 226
INPAT INPAT_ICD10(O713) Obstetric laceration of cervix 221
INPAT INPAT_ICD10(O753) Other infection during labour 217
INPAT INPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 212
INPAT INPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 211
INPAT INPAT_ICD10(O643) Obstructed labour due to brow presentation 204
OUTPAT OUTPAT_ICD10(O730) Retained placenta without haemorrhage 193
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O722) Delayed and secondary postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 187
INPAT INPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 186
OUTPAT OUTPAT_ICD10(O641) Obstructed labour due to breech presentation 184
OUTPAT OUTPAT_ICD10(O700) First degree perineal laceration during delivery 182
OUTPAT OUTPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 178
INPAT INPAT_ICD10(O717) Obstetric haematoma of pelvis 173
OUTPAT OUTPAT_ICD10(O630) Prolonged first stage (of labour) 164
INPAT INPAT_ICD10(O709) Perineal laceration during delivery, unspecified 162
INPAT INPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 161
OUTPAT OUTPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 152
OUTPAT OUTPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 148
INPAT INPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 140
INPAT INPAT_ICD10(O664) Failed trial of labour, unspecified 137
INPAT INPAT_ICD10(O668) Other specified obstructed labour 137
OUTPAT OUTPAT_ICD10(O610) Failed medical induction of labour 132
INPAT INPAT_ICD10(O678) Other intrapartum haemorrhage 129
INPAT INPAT_ICD10(O711) Rupture of uterus during labour 129
OUTPAT OUTPAT_ICD10(O714) Obstetric high vaginal laceration alone 128
INPAT INPAT_ICD10(O669) Obstructed labour, unspecified 124
INPAT INPAT_ICD10(O642) Obstructed labour due to face presentation 122
INPAT INPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 114
INPAT INPAT_ICD10(O718) Other specified obstetric trauma 102
INPAT INPAT_ICD10(O698) Labour and delivery complicated by other cord complications 98
INPAT INPAT_ICD10(O703) Fourth degree perineal laceration during delivery 91
INPAT INPAT_ICD10(O619) Failed induction of labour, unspecified 88
OUTPAT OUTPAT_ICD10(O750) Maternal distress during labour and delivery 87
INPAT INPAT_ICD10(O755) Delayed delivery after artificial rupture of membranes 84
OUTPAT OUTPAT_ICD10(O709) Perineal laceration during delivery, unspecified 82
INPAT INPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 79
INPAT INPAT_ICD10(O644) Obstructed labour due to shoulder presentation 76
OUTPAT OUTPAT_ICD10(O703) Fourth degree perineal laceration during delivery 73
OUTPAT OUTPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 68
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O701) Second degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 67
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(O680) Labour and delivery complicated by fetal heart rate anomaly. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 61
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O72) Postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 59
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! 54
OUTPAT OUTPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 53
INPAT INPAT_ICD10(O639) Long labour, unspecified 51
INPAT INPAT_ICD10(O645) Obstructed labour due to compound presentation 51
OUTPAT OUTPAT_ICD10(O717) Obstetric haematoma of pelvis 49
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O721) Other immediate postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 48
INPAT INPAT_ICD10(O710) Rupture of uterus before onset of labour 47
OUTPAT OUTPAT_ICD10(O611) Failed instrumental induction of labour 47
OUTPAT OUTPAT_ICD10(O621) Secondary uterine inertia 47
OUTPAT OUTPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 47
OUTPAT OUTPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 43
INPAT INPAT_ICD10(O693) Labour and delivery complicated by short cord 42
OUTPAT OUTPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 39
INPAT INPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 37
OUTPAT OUTPAT_ICD10(O618) Other failed induction of labour 36
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O60) Preterm labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 36
OUTPAT OUTPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 35
OUTPAT OUTPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 35
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! 35
INPAT INPAT_ICD10(O658) Obstructed labour due to other maternal pelvic abnormalities 33
INPAT INPAT_ICD10(O699) Labour and delivery complicated by cord complication, unspecified 32
OUTPAT OUTPAT_ICD10(O623) Precipitate labour 31
INPAT INPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 29
OUTPAT OUTPAT_ICD10(O718) Other specified obstetric trauma 29
OUTPAT OUTPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 29
OUTPAT OUTPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 28
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O709) Perineal laceration during delivery, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 28
INPAT INPAT_ICD10(O659) Obstructed labour due to maternal pelvic abnormality, unspecified 27
OUTPAT OUTPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 27
OUTPAT OUTPAT_ICD10(O757) Vaginal delivery following previous caesarean section 27
INPAT INPAT_ICD10(O715) Other obstetric injury to pelvic organs 26
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O629) Abnormality of forces of labour, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 26
INPAT INPAT_ICD10(O723) Postpartum coagulation defects 25
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O720) Third-stage haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 25
OUTPAT OUTPAT_ICD10(O713) Obstetric laceration of cervix 24
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O631) Prolonged second stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 24
INPAT INPAT_ICD10(O628) Other abnormalities of forces of labour 23
OUTPAT OUTPAT_ICD10(O620) Primary inadequate contractions 23
OUTPAT OUTPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 23
OUTPAT OUTPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 23
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O641) Obstructed labour due to breech presentation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 23
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O718) Other specified obstetric trauma. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 22
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(O691) Labour and delivery complicated by cord around neck, with compression 21
OUTPAT OUTPAT_ICD10(O651) Obstructed labour due to generally contracted pelvis 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(O655) Obstructed labour due to abnormality of maternal pelvic organs 19
OUTPAT OUTPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 19
INPAT INPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 18
OUTPAT OUTPAT_ICD10(O622) Other uterine inertia 18
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O630) Prolonged first stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 18
INPAT INPAT_ICD10(O719) Obstetric trauma, unspecified 17
OUTPAT OUTPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 17
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O622) Other uterine inertia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 17
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! 17
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! 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
OUTPAT OUTPAT_ICD10(O710) Rupture of uterus before onset of labour 15
INPAT INPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 14
OUTPAT OUTPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 14
OUTPAT OUTPAT_ICD10(O668) Other specified obstructed labour 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
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O719) Obstetric trauma, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 14
INPAT INPAT_ICD10(O712) Postpartum inversion of uterus 13
INPAT INPAT_ICD10(O754) Other complications of obstetric surgery and procedures 13
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O700) First degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 13
OUTPAT OUTPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 12
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! 12
OUTPAT OUTPAT_ICD10(O639) Long labour, unspecified 11
OUTPAT OUTPAT_ICD10(O650) Obstructed labour due to deformed pelvis 11
OUTPAT OUTPAT_ICD10(O754) Other complications of obstetric surgery and procedures 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O610) Failed medical induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 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
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(O644) Obstructed labour due to shoulder presentation 9
OUTPAT OUTPAT_ICD10(O723) Postpartum coagulation defects 9
INPAT INPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 8
OUTPAT OUTPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 8
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O611) Failed instrumental induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 8
OUTPAT OUTPAT_ICD10(O678) Other intrapartum haemorrhage 7
OUTPAT OUTPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 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(O719) Obstetric trauma, unspecified 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O660) Obstructed labour due to shoulder dystocia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 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(O73) Retained placenta and membranes, without haemorrhage 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O619) Failed induction of labour, unspecified. 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(O713) Obstetric laceration of cervix. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O714) Obstetric high vaginal laceration alone. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O73) Retained placenta and membranes, without haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O754) Other complications of obstetric surgery and procedures. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 5