ICD-11

A group of conditions characterised by findings in the fetus or newborn due to any other adverse evolution (complication) during labour and delivery.

These codes are for use when the listed maternal conditions are specified as the cause of confirmed morbidity or potential morbidity which have their origin in the perinatal period (before birth through the first 28 days after birth). Use additional code to identify the condition in the fetus or newborn.

Abnormal uterine contractions can either be hypertonic or hypotonic. Hypertonic contractions are ones that occur more frequently and are marked by an increase in resting tone to more than 15 mm Hg. Hypotonic contractions are ones where the number of contractions is unusually low, the resting tone of the uterus is less than 10 mm Hg, and the strength of contractions is consistently < 26 mm Hg.