Human diseases in ICD-11 classification [BR:br08403] 20 Developmental anomalies Multiple developmental anomalies or syndromes LD28 Syndromes with connective tissue involvement as a major feature H00800 Loeys-Dietz syndrome Pathway-based classification of diseases [BR:br08402] Signal transduction nt06507 TGFB signaling H00800 Loeys-Dietz syndrome