pseudohypoparathyroidism type 1B DOID:0080222 GARD:0010680 ICD10:E20.1 MESH:C548075 MONDO:0011301 OMIM:603233 Orphanet:94089 PHP1B Php 1B Pseudohypoparathyroidism type 1B (PHP-1b) is a type of pseudohypoparathyroidism (PHP) characterized by localized resistance to parathyroid hormone (PTH) mainly in the renal tissues which manifests with hypocalcemia, hyperphosphatemia and elevated PTH levels. About 60-70% of patients also present with elevated TSH levels due to TSH resistance. UMLS:C2932715 https://rarediseases.info.nih.gov/diseases/10680/pseudohypoparathyroidism-type-1b pseudohypoparathyroidism type IB pseudohypoparathyroidism, type 1B pseudohypoparathyroidism, type IB pseudohypoparathyroidism