|  E20.81 |  | Hypoparathyroidism due to impaired parathyroid hormone secretion | 
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		|  E20.810 |  | Autosomal dominant hypocalcemia |  
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| Autosomal dominant hypocalcemia type 1 (ADH1) |  | Autosomal dominant hypocalcemia type 2 (ADH2) |  
		| CodeAlso | , if applicable, any associated conditions, such as: calculus of kidney (N20.0)
 chronic kidney disease (N18.-)
 respiratory distress (J80, R06.-)
 seizure disorder (G40.-, R56.9)
 
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		|  E20.811 |  | Secondary hypoparathyroidism in diseases classified elsewhere |  
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		| CodeFirst | underlying condition, if known 
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		|  E20.812 |  | Autoimmune hypoparathyroidism |  
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		| CodeFirst | , if applicable, underlying condition such as: autoimmune polyglandular failure (E31.0)
 Schmidt's syndrome (E31.0)
 
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		|  E20.818 |  | Other specified hypoparathyroidism due to impaired parathyroid hormone secretion |  
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| Familial isolated hypoparathyroidism |  |  | 
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		|  E20.819 |  | Hypoparathyroidism due to impaired parathyroid hormone secretion, unspecified |  |