has material basis in germline mutation in ALDH6A1 inborn organic aciduria methylmalonate semialdehyde dehydrogenase deficiency https://github.com/monarch-initiative/mondo/issues/4985 https://www.malacards.org/card/methylmalonate_semialdehyde_dehydrogenase_deficiency MONDO:0013579 OMIM:614105 Orphanet:289307 UMLS:C3279840 GARD:0017322 MMSDHD methylmalonate semialdehyde dehydrogenase deficiency developmental delay due to MMSDH deficiency developmental delay due to methylmalonate semialdehyde dehydrogenase deficiency icd11.foundation:1700759193 MESH:C566402 MEDGEN:481470 developmental delay due to ALDH6A1 deficiency inborn disorder of branched-chain amino acid metabolism