Preferred Label : Prolonged first stage of labour;
ICD-11 definition : The first stage of labour where cervical dilatation progresses less than 1 centimetre
per hour for a minimum of 4 hours. Protracted descent is less than 1 centimetre per
hour for nulliparas and less than 2 centimetre per hour for multiparas.;
ICD-11 synonym : prolonged first stage of delivery; long labour, first stage; long delivery, first stage; prolonged or protracted first stage of labour;
The first stage of labour where cervical dilatation progresses less than 1 centimetre
per hour for a minimum of 4 hours. Protracted descent is less than 1 centimetre per
hour for nulliparas and less than 2 centimetre per hour for multiparas.