--- O36.011 Maternal care for anti-D [Rh] antibodies, first trimester

--- O36.012 Maternal care for anti-D [Rh] antibodies, second trimester

--- O36.013 Maternal care for anti-D [Rh] antibodies, third trimester

--- O36.019 Maternal care for anti-D [Rh] antibodies, unspecified trimester