peripheral retinal degeneration Blessig's cysts https://github.com/monarch-initiative/mondo/issues/9097 https://www.malacards.org/card/blessigs_cysts ICD9:362.62 icd11.foundation:332813459 MONDO:0001454 UMLS:C0154855 ICD10CM:H35.42 Microcystoid retinal degeneration SCTID:37075008 Blessig cysts MEDGEN:509686 DOID:12164 Microcystoid degeneration of retina