O30.031✓ Billable
Twin pregnancy, monochorionic/diamniotic, first trimester
Code Hierarchy
┌15Pregnancy, childbirth and the puerperium (O00-O9A)├O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)├O30Multiple gestation
└O30.031Twin pregnancy, monochorionic/diamniotic, first trimester
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