skin disorder sclerema neonatorum icd11.foundation:1470028414 NCIT:C35009 UMLS:C0036415 SCTID:206539008 A diffuse hardening of skin and subcutaneous adipose tissue, associated with minimal inflammation without fat necrosis, that typically affects critically ill preterm neonates during the first week of life. MESH:D012593 MEDGEN:20677 sclerema neonatorum MONDO:0043783