Corticosterone Methyloxidase Type Ii Deficiency, also known as hypoaldosteronism, congenital, due to cmo ii deficiency, is related to corticosterone methyloxidase type i deficiency and hypoaldosteronism, and has symptoms including vomiting An important gene associated with Corticosterone Methyloxidase Type Ii Deficiency is CYP11B2 (Cytochrome P450 Family 11 Subfamily B Member 2). Related phenotypes are hyponatremia and hyperkalemia