O36.9 - Maternal care for fetal problem, unspecified O36 - Maternal care for other fetal problems O36.9 - Maternal care for fetal problem, unspecified O36.90 - Maternal care for fetal problem, unspecified, unspecified trimester O36.91 - Maternal care for fetal problem, unspecified, first trimester O36.92 - Maternal care for fetal problem, unspecified, second trimester O36.93 - Maternal care for fetal problem, unspecified, third trimester