Table 1 Diagnoses with an expected higher risk of caesarean section and the corresponding ICD-GM 10 codes

Twins and higher order pregnancies

O30, Z37.2-3, Z37.5-6, Z38.3, Z38.6

Anomalies of the foetal presentation

O32, O64

Intrauterine growth restriction

O36.5

Post date pregnancy

O09.7, O48

Preterm delivery

O09.3-5, O60.1, O60.3

Maternal distress

O75.0, O75.2, O75.3

Obstructed labour

O66

Asphyxia

O68

Prolonged birth

O63

Macrosomia

O36.6, O66.2

Placenta praevia

O44

Abruptio placentae

O45

Disproportion

O33

Anomalies of maternal pelvis

O34, O65

Intrapartal bleeding (excluded placenta previa)

O67

Failed induction

O61

Preexisting hypertonic disorders

O10

Non-severe hypertonic disorders during pregnancy

O11-13

Preeclampsia

O14

Eclampsia

O15

Complications because of umbilical cord

O69

Diabetes mellitus

O24.0-3

Gestational diabetes mellitus

O24.4

Uterine rupture

O71.0-1

Premature rupture of foetal membranes (PROM)

O42, O75.5-6

Abnorm contractions

O62.0-2

Previous caesarean section

O34.2