Any non-syndromic pontocerebellar hypoplasia in which the cause of the disease is a mutation in the AMPD2 gene. The disease is MONDO_0014351 (pontocerebellar hypoplasia type 9). Also known as: AMPD2 non-syndromic pontocerebellar hypoplasia, PCH9, non-syndromic pontocerebellar hypoplasia caused by mutation in AMPD2.