Additional indications for caesarean section are conditional on there being more than one reason for which a caesarean was performed. Additional indications for caesarean section are completed after the Birth event-main reason for caesarean section code (ICD-10-AM 9th edn) has been identified.
For national reporting of the Birth event-additional indication for caesarean section (NHDD) data element the following mapping occurs:
An ICD-10-AM code in the range O360-O365 or O367-O369 (Maternal care for other known or suspected fetal problems) is mapped to code 1 Fetal compromise.
ICD-10-AM code O366 (Maternal care for excessive fetal growth) or code O662 (Labour and delivery affected by unusually large fetus) is mapped to code 2 Suspected fetal macrosomia.
An ICD-10-AM code in the range O320-O329 (Maternal care for known or suspected malpresentation of fetus) or O640-O649 (Labour and delivery affected by malposition and malpresentation of fetus) is mapped to code 3 Malpresentation.
ICD-10-AM code O622 (Other uterine inertia) or code O629 (Abnormality of forces of labour, unspecified) together with Cervical dilatation prior to caesarean = code 1 (3cm or less) is mapped to code 10 Lack of progress; less than or equal to 3 cm cervical dilatation.
ICD-10-AM code O622 (Other uterine inertia) or code O629 (Abnormality of forces of labour, unspecified) together with Cervical dilatation prior to caesarean = code 2 (More than 3cm) is mapped to code 11 Lack of progress in the first stage; greater than 3 cm to less than 10 cm cervical dilatation.
ICD-10-AM code O622 (Other uterine inertia) or code O629 (Abnormality of forces of labour, unspecified) together with Labour and delivery complication code = O631 (Prolonged second stage (of labour)) is mapped to code 12 Lack of progress in the second stage.
An ICD-10-AM code in the range O440-O441 (Placenta praevia) is mapped to code 13 Placenta praevia.
An ICD-10-AM code in the range O450-O459 (Premature separation of placenta [abruptio placentae]) is mapped to code 14 Placental abruption.
ICD-10-AM code O694 (Labour and delivery complicated by vasa praevia) is mapped to code 15 Vasa praevia.
An ICD-10-AM code in the range O200-O209 (Haemorrhage in early pregnancy), O460-O469 (Antepartum haemorrhage, not elsewhere classified) or O670-O679 (Labour and delivery complicated by intrapartum haemorrhage, not elsewhere classified) is mapped to code 16 Antepartum/intrapartum haemorrhage.
An ICD-10-AM code in the range O300-O309 (Multiple gestation) is mapped to code 17 Multiple pregnancy.
ICD-10-AM code O665 (Failed application of vacuum extractor and forceps, unspecified) is mapped to code 18 Unsuccessful attempt at assisted delivery.
ICD-10-AM code O690 (Labour and delivery complicated by prolapse of cord) is mapped to code 19 Cord prolapse.
ICD-10-AM code Z352 (Supervision of pregnancy with other poor reproductive or obstetric history) with Caesarean section event (first additional indication)-type of poor reproductive or obstetric history = 3 (Previous adverse fetal/neonatal outcome) is mapped to code 20 Previous adverse perinatal outcome.
ICD-10-AM code O342 (Maternal care due to uterine scar from previous surgery) with Number of previous caesarean sections => 1 is mapped to code 21 Previous caesarean section.
ICD-10-AM code Z352 (Supervision of pregnancy with other poor reproductive or obstetric history) with Caesarean section event (first additional indication)-type of poor reproductive or obstetric history = 2 (Previous perineal trauma/4th degree tear) is mapped to code 22 Previous severe perineal trauma.
ICD-10-AM code Z352 (Supervision of pregnancy with other poor reproductive or obstetric history) with Caesarean section event (first additional indication)-first additional type of poor reproductive or obstetric history = 1 (Previous shoulder dystocia) is mapped to code 23 Previous shoulder dystocia.
ICD-10-AM code Z352 (Supervision of pregnancy with other poor reproductive or obstetric history) with Caesarean section event (first additional indication)-type of poor reproductive or obstetric history = 8 (Other) is mapped to code 29 Other obstetric, medical, surgical, psychological indications.
An ICD-10-AM code except those listed in this mapping list, and excluding code O82 (Single delivery by caesarean section) and codes in the range U781-U882 (Supplementary codes for chronic conditions), is mapped to code 29 Other obstetric, medical, surgical, psychological indications. ICD-10-AM code O82 (Single delivery by caesarean section) and codes in the range U781-U882 (Supplementary codes for chronic conditions) are excluded from this data element.