The amount of a inorganic pyrophosphatase 2, mitochondrial (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes term OBA_2080938 (level of inorganic pyrophosphatase 2, mitochondrial (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid inorganic pyrophosphatase 2, mitochondrial (human) amount.