CHORIONICITY STATUS

The CLINICAL INVESTIGATION RESULT ITEM for the chorionicity status for the baby (whether twins in utero share one chorion and placenta (monochorionic) or whether they each have their own (dichorionic)).

Format / Length

an1

National Codes

Code Description

1

Monochorionic

2

Dichorionic

8

Other (in cases of triplets or more)

Default Codes

Code Description

9

Chorionicity status not known