If the female baby is having normal genitalia in infancy

if the female baby is having normal genitalia in infancy,then shouldn’t we include 3 beta hsd deficiency type of cah ?

The explanation says to rule out 3beta hsd deficiency. Please clarify.

Hi, females with 3β-HSD deficiency may have slight abnormalities of the external genitalia and mild virilisation at birth.

Thank you.