disease vitamin D deficiency true Deficiencies, Vitamin D VITAMIN D DEFIC ICD9:268 Vitamin D Deficiencies Vitamin D deficiency, NOS Avitaminosis D Deficiency, Vitamin D MeSH:D014808 MedDRA:10047626 NCIt:C114830 Avitaminosis D, NOS A nutritional condition produced by a deficiency of VITAMIN D in the diet, insufficient production of vitamin D in the skin, inadequate absorption of vitamin D from the diet, or abnormal conversion of vitamin D to its bioactive metabolites. It is manifested clinically as RICKETS in children and OSTEOMALACIA in adults. (From Cecil Textbook of Medicine, 19th ed, p1406) Vitamin D insufficiency SNOMEDCT:34713006 Tomasz Adamusiak Vitamin D deficiency (disorder) DEFIC VITAMIN D ICD10:E55