hypersensitivity reaction disease autoimmune disease progestogen hypersensitivity https://github.com/monarch-initiative/mondo/issues/8069 https://rarediseases.info.nih.gov/diseases/9139/autoimmune-progesterone-dermatitis Progestogen hypersensitivity (PH), also referred to as autoimmune progesterone dermatitis (APD), is a rare immediate or delayed hypersensitivity reaction to endogenous progesterone and/or synthetic progestins characterized by diverse cutaneous manifestations, bronchospasm, and/or anaphylaxis. autoimmune progesterone dermatitis MEDGEN:220359 autoimmune progesterone dermatitis/urticaria MONDO:0021952 MESH:C535299 UMLS:C1260879 autoimmune progesterone urticaria SCTID:400009001 ICD9:708.8 progesterone dermatitis APD PH The term “autoimmune progesterone dermatitis" was initially used because the patient described reacted to endogenous progesterone. However, there is limited evidence that this is an autoimmune condition. There is also evidence that PH may start after allergic sensitization to progestins. Thus the term “progestogen hypersensitivity” was recently proposed as an alternative to APD, as it encompasses hypersensitivity reactions to both endogenous and exogenous progesterone, as well as progestins which are closely structurally related. PMID:30712576