An autosomal recessive form of methylmalonic aciduria, caused by mutation(s) in the MMAB gene, encoding cob(I)yrinic acid a,c-diamide adenosyltransferase, mitochondrial. The disease is methylmalonic aciduria, cblB type (MONDO_0009614, a Monarch Disease Ontology term). Also known as: methylmalonic acidemia cblB type, methylmalonic acidemia, cblB type, methylmalonic aciduria cblB type, methylmalonic aciduria, vitamin B12-responsive, cblB type, methylmalonic aciduria, vitamin B12-responsive, due to defect in synthesis of adenosylcobalamin, cblB complementation type, vitamin B12-responsive methylmalonic acidemia type cblB, vitamin B12-responsive methylmalonic aciduria, type cblB.