Source Code Name Case count Share of cases (%)
INPAT INPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 9393
INPAT INPAT_ICD10(O631) Prolonged second stage (of labour) 5021
INPAT INPAT_ICD10(O701) Second degree perineal laceration during delivery 4327
INPAT INPAT_ICD10(O60) Preterm labour 4268
INPAT INPAT_ICD10(O721) Other immediate postpartum haemorrhage 3865
INPAT INPAT_ICD10(O630) Prolonged first stage (of labour) 3496
INPAT INPAT_ICD10(O720) Third-stage haemorrhage 3447
INPAT INPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 3305
INPAT INPAT_ICD10(O641) Obstructed labour due to breech presentation 2235
INPAT INPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 2110
OUTPAT OUTPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1682
INPAT INPAT_ICD10(O750) Maternal distress during labour and delivery 1628
INPAT INPAT_ICD10(O610) Failed medical induction of labour 1510
INPAT INPAT_ICD10(O722) Delayed and secondary postpartum haemorrhage 1380
INPAT INPAT_ICD10(O700) First degree perineal laceration during delivery 1248
INPAT INPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 1210
INPAT INPAT_ICD10(O730) Retained placenta without haemorrhage 1081
INPAT INPAT_ICD10(O621) Secondary uterine inertia 976
OUTPAT OUTPAT_ICD10(O756) Delayed delivery after spontaneous or unspecified rupture of membranes 972
INPAT INPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 915
INPAT INPAT_ICD10(O714) Obstetric high vaginal laceration alone 825
INPAT INPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 777
INPAT INPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 770
INPAT INPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 755
INPAT INPAT_ICD10(O702) Third degree perineal laceration during delivery 742
INPAT INPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 698
INPAT INPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 653
INPAT INPAT_ICD10(O620) Primary inadequate contractions 644
INPAT INPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 629
INPAT INPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 472
OUTPAT OUTPAT_ICD10(O680) Labour and delivery complicated by fetal heart rate anomaly 440
OUTPAT OUTPAT_ICD10(O731) Retained portions of placenta and membranes, without haemorrhage 425
INPAT INPAT_ICD10(O622) Other uterine inertia 390
INPAT INPAT_ICD10(O757) Vaginal delivery following previous caesarean section 370
INPAT INPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 367
OUTPAT OUTPAT_ICD10(O702) Third degree perineal laceration during delivery 367
OUTPAT OUTPAT_ICD10(O701) Second degree perineal laceration during delivery 358
INPAT INPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 354
INPAT INPAT_ICD10(O611) Failed instrumental induction of labour 353
INPAT INPAT_ICD10(O618) Other failed induction of labour 347
INPAT INPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 293
INPAT INPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 278
INPAT INPAT_ICD10(O662) Obstructed labour due to unusually large fetus 276
OUTPAT OUTPAT_ICD10(O60) Preterm labour 258
INPAT INPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 256
OUTPAT OUTPAT_ICD10(O720) Third-stage haemorrhage 254
INPAT INPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 244
OUTPAT OUTPAT_ICD10(O721) Other immediate postpartum haemorrhage 224
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 210
INPAT INPAT_ICD10(O713) Obstetric laceration of cervix 210
INPAT INPAT_ICD10(O623) Precipitate labour 209
INPAT INPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 207
INPAT INPAT_ICD10(O753) Other infection during labour 201
INPAT INPAT_ICD10(O643) Obstructed labour due to brow presentation 197
OUTPAT OUTPAT_ICD10(O631) Prolonged second stage (of labour) 191
INPAT INPAT_ICD10(O690) Labour and delivery complicated by prolapse of cord 177
OUTPAT OUTPAT_ICD10(O730) Retained placenta without haemorrhage 173
OUTPAT OUTPAT_ICD10(O700) First degree perineal laceration during delivery 172
INPAT INPAT_ICD10(O717) Obstetric haematoma of pelvis 168
OUTPAT OUTPAT_ICD10(O641) Obstructed labour due to breech presentation 162
INPAT INPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 143
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O722) Delayed and secondary postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 141
OUTPAT OUTPAT_ICD10(O630) Prolonged first stage (of labour) 138
INPAT INPAT_ICD10(O692) Labour and delivery complicated by other cord entanglement 136
OUTPAT OUTPAT_ICD10(O7021) III degree perineal tear involving less than one half of external anal sphincter thickness torn during childbirth 134
INPAT INPAT_ICD10(O668) Other specified obstructed labour 133
INPAT INPAT_ICD10(O664) Failed trial of labour, unspecified 132
OUTPAT OUTPAT_ICD10(O640) Obstructed labour due to incomplete rotation of fetal head 124
OUTPAT OUTPAT_ICD10(O7022) III degree perineal tear involving one half or more of external anal sphincter thickness torn during childbirth 124
INPAT INPAT_ICD10(O669) Obstructed labour, unspecified 123
INPAT INPAT_ICD10(O711) Rupture of uterus during labour 123
INPAT INPAT_ICD10(O642) Obstructed labour due to face presentation 118
INPAT INPAT_ICD10(O678) Other intrapartum haemorrhage 118
INPAT INPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 114
OUTPAT OUTPAT_ICD10(O610) Failed medical induction of labour 109
INPAT INPAT_ICD10(O698) Labour and delivery complicated by other cord complications 95
INPAT INPAT_ICD10(O718) Other specified obstetric trauma 92
INPAT INPAT_ICD10(O619) Failed induction of labour, unspecified 86
INPAT INPAT_ICD10(O709) Perineal laceration during delivery, unspecified 85
INPAT INPAT_ICD10(O703) Fourth degree perineal laceration during delivery 84
OUTPAT OUTPAT_ICD10(O750) Maternal distress during labour and delivery 81
INPAT INPAT_ICD10(O644) Obstructed labour due to shoulder presentation 75
INPAT INPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 73
INPAT INPAT_ICD10(O755) Delayed delivery after artificial rupture of membranes 73
OUTPAT OUTPAT_ICD10(O714) Obstetric high vaginal laceration alone 73
OUTPAT OUTPAT_ICD10(O703) Fourth degree perineal laceration during delivery 67
INPAT INPAT_ICD10(O650) Obstructed labour due to deformed pelvis 64
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! 63
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
OUTPAT OUTPAT_ICD10(O688) Labour and delivery complicated by other evidence of fetal stress 57
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O701) Second degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 57
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O72) Postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 57
INPAT INPAT_ICD10(O629) Abnormality of forces of labour, unspecified 55
OUTPAT OUTPAT_ICD10(O709) Perineal laceration during delivery, unspecified 55
OUTPAT OUTPAT_ICD10(O654) Obstructed labour due to fetopelvic disproportion, unspecified 50
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O62) Abnormalities of forces of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 50
INPAT INPAT_ICD10(O639) Long labour, unspecified 48
INPAT INPAT_ICD10(O645) Obstructed labour due to compound presentation 47
OUTPAT OUTPAT_ICD10(O717) Obstetric haematoma of pelvis 47
OUTPAT OUTPAT_ICD10(O653) Obstructed labour due to pelvic outlet and mid-cavity contraction 45
INPAT INPAT_ICD10(O710) Rupture of uterus before onset of labour 43
INPAT INPAT_ICD10(O693) Labour and delivery complicated by short cord 41
OUTPAT OUTPAT_ICD10(O621) Secondary uterine inertia 41
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O721) Other immediate postpartum haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 41
OUTPAT OUTPAT_ICD10(O611) Failed instrumental induction of labour 39
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! 38
INPAT INPAT_ICD10(O624) Hypertonic, incoordinate, and prolonged uterine contractions 37
OUTPAT OUTPAT_ICD10(O681) Labour and delivery complicated by meconium in amniotic fluid 35
OUTPAT OUTPAT_ICD10(O682) Labour and delivery complicated by fetal heart rate anomaly with meconium in amniotic fluid 35
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O60) Preterm labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 34
INPAT INPAT_ICD10(O699) Labour and delivery complicated by cord complication, unspecified 32
OUTPAT OUTPAT_ICD10(O648) Obstructed labour due to other malposition and malpresentation 32
INPAT INPAT_ICD10(O658) Obstructed labour due to other maternal pelvic abnormalities 31
OUTPAT OUTPAT_ICD10(O618) Other failed induction of labour 29
INPAT INPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 28
OUTPAT OUTPAT_ICD10(O660) Obstructed labour due to shoulder dystocia 28
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O631) Prolonged second stage (of labour). Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 28
INPAT INPAT_ICD10(O659) Obstructed labour due to maternal pelvic abnormality, unspecified 26
OUTPAT OUTPAT_ICD10(O679) Intrapartum haemorrhage, unspecified 26
OUTPAT OUTPAT_ICD10(O745) Spinal and epidural anaesthesia-induced headache during labour and delivery 26
INPAT INPAT_ICD10(O715) Other obstetric injury to pelvic organs 25
OUTPAT OUTPAT_ICD10(O718) Other specified obstetric trauma 25
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O641) Obstructed labour due to breech presentation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 25
INPAT INPAT_ICD10(O723) Postpartum coagulation defects 24
OUTPAT OUTPAT_ICD10(O623) Precipitate labour 24
OUTPAT OUTPAT_ICD10(O649) Obstructed labour due to malposition and malpresentation, unspecified 24
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O629) Abnormality of forces of labour, unspecified. 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
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O720) Third-stage haemorrhage. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 23
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O709) Perineal laceration during delivery, unspecified. 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(O651) Obstructed labour due to generally contracted pelvis 21
OUTPAT OUTPAT_ICD10(O683) Labour and delivery complicated by biochemical evidence of fetal stress 21
OUTPAT OUTPAT_ICD10(O665) Failed application of vacuum extractor and forceps, unspecified 19
OUTPAT OUTPAT_ICD10(O689) Labour and delivery complicated by fetal stress, unspecified 19
OUTPAT OUTPAT_ICD10(O655) Obstructed labour due to abnormality of maternal pelvic organs 18
OUTPAT OUTPAT_ICD10(O691) Labour and delivery complicated by cord around neck, with compression 18
OUTPAT OUTPAT_ICD10(O713) Obstetric laceration of cervix 18
OUTPAT OUTPAT_ICD10(O757) Vaginal delivery following previous caesarean section 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
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! 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
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
INPAT INPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 16
OUTPAT OUTPAT_ICD10(O622) Other uterine inertia 16
OUTPAT OUTPAT_ICD10(O662) Obstructed labour due to unusually large fetus 15
OUTPAT OUTPAT_ICD10(O711) Rupture of uterus during labour 15
OUTPAT OUTPAT_ICD10(O752) Pyrexia during labour, not elsewhere classified 15
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O700) First degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 15
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O718) Other specified obstetric trauma. 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(O669) Obstructed labour, unspecified 14
OUTPAT OUTPAT_ICD10(O710) Rupture of uterus before onset of labour 14
OUTPAT OUTPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 14
INPAT INPAT_ICD10(O716) Obstetric damage to pelvic joints and ligaments 13
INPAT INPAT_ICD10(O754) Other complications of obstetric surgery and procedures 12
OUTPAT OUTPAT_ICD10(O668) Other specified obstructed labour 12
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! 12
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! 12
INPAT INPAT_ICD10(O712) Postpartum inversion of uterus 11
OUTPAT OUTPAT_ICD10(O639) Long labour, unspecified 11
OUTPAT OUTPAT_ICD10(O650) Obstructed labour due to deformed pelvis 11
OUTPAT OUTPAT_ICD10(O652) Obstructed labour due to pelvic inlet contraction 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
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(O690) Labour and delivery complicated by prolapse of cord 10
OUTPAT OUTPAT_ICD10(O72) Postpartum haemorrhage 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O611) Failed instrumental induction of labour. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 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(O663) Obstructed labour due to other abnormalities of fetus 9
INPAT INPAT_ICD10(O759) Complication of labour and delivery, unspecified 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(O619) Failed induction of labour, unspecified 8
OUTPAT OUTPAT_ICD10(O644) Obstructed labour due to shoulder presentation 8
OUTPAT OUTPAT_ICD10(O754) Other complications of obstetric surgery and procedures 8
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! 8
OUTPAT OUTPAT_ICD10(O678) Other intrapartum haemorrhage 7
OUTPAT OUTPAT_ICD10(O694) Labour and delivery complicated by vasa praevia 7
OUTPAT OUTPAT_ICD10(O740) Aspiration pneumonitis due to anaesthesia during labour and delivery 7
OUTPAT OUTPAT_ICD10(O670) Intrapartum haemorrhage with coagulation defect 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O70) Perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O702) Third degree perineal laceration during delivery. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O730) Retained placenta without haemorrhage. 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(O692) Labour and delivery complicated by other cord entanglement 5
OUTPAT OUTPAT_ICD10(O719) Obstetric trauma, unspecified 5
OUTPAT OUTPAT_ICD10(O753) Other infection during labour 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