ICD-10-CM > O00-O9A > O30-O48 > O36 > O36.1 O36.1 Maternal care for other isoimmunization Non-Billable/Non-Specific Applicable To Maternal care for ABO isoimmunization Codes O36.11Maternal care for Anti-A sensitizationO36.111Maternal care for Anti-A sensitization, first trimesterO36.1110..., not applicable or unspecifiedO36.1111..., fetus 1O36.1112..., fetus 2O36.1113..., fetus 3O36.1114..., fetus 4O36.1115..., fetus 5O36.1119..., other fetusO36.112Maternal care for Anti-A sensitization, second trimesterO36.1120..., not applicable or unspecifiedO36.1121..., fetus 1O36.1122..., fetus 2O36.1123..., fetus 3O36.1124..., fetus 4O36.1125..., fetus 5O36.1129..., other fetusO36.113Maternal care for Anti-A sensitization, third trimesterO36.1130..., not applicable or unspecifiedO36.1131..., fetus 1O36.1132..., fetus 2O36.1133..., fetus 3O36.1134..., fetus 4O36.1135..., fetus 5O36.1139..., other fetusO36.119Maternal care for Anti-A sensitization, unspecified trimesterO36.1190..., not applicable or unspecifiedO36.1191..., fetus 1O36.1192..., fetus 2O36.1193..., fetus 3O36.1194..., fetus 4O36.1195..., fetus 5O36.1199..., other fetusO36.19Maternal care for other isoimmunizationO36.191Maternal care for other isoimmunization, first trimesterO36.1910..., not applicable or unspecifiedO36.1911..., fetus 1O36.1912..., fetus 2O36.1913..., fetus 3O36.1914..., fetus 4O36.1915..., fetus 5O36.1919..., other fetusO36.192Maternal care for other isoimmunization, second trimesterO36.1920..., not applicable or unspecifiedO36.1921..., fetus 1O36.1922..., fetus 2O36.1923..., fetus 3O36.1924..., fetus 4O36.1925..., fetus 5O36.1929..., other fetusO36.193Maternal care for other isoimmunization, third trimesterO36.1930..., not applicable or unspecifiedO36.1931..., fetus 1O36.1932..., fetus 2O36.1933..., fetus 3O36.1934..., fetus 4O36.1935..., fetus 5O36.1939..., other fetusO36.199Maternal care for other isoimmunization, unspecified trimesterO36.1990..., not applicable or unspecifiedO36.1991..., fetus 1O36.1992..., fetus 2O36.1993..., fetus 3O36.1994..., fetus 4O36.1995..., fetus 5O36.1999..., other fetus