has modifier primary hyperparathyroidism (disease) genetic hyperparathyroidism familial primary hyperparathyroidism An instance of primary hyperparathyroidism (disease) that is caused by an inherited modification of the individual's genome. GARD:0002837 ICD10:E21.0 MONDO:0016365 Orphanet:2207 UMLS:CN201220 hereditary primary hyperparathyroidism (disease) inherited tumor of parathyroid gland