ICD-10-CM E20: Hypoparathyroidism

ICD-10-CM Diagnosis Code (2025)

Official Description for E20

Hypoparathyroidism

Coding Notes & Guidelines for E20

Excludes1: Not Coded Here
  • Di George's syndrome (D82.1)
  • postprocedural hypoparathyroidism (E89.2)
  • tetany NOS (R29.0)
  • transitory neonatal hypoparathyroidism (P71.4)
Code First

underlying condition, if known

Code First
  • , if applicable, underlying condition such as:
  • autoimmune polyglandular failure (E31.0)
  • Schmidt's syndrome (E31.0)
Inclusion Terms
  • Autosomal dominant hypocalcemia type 1 (ADH1)
  • Autosomal dominant hypocalcemia type 2 (ADH2)
Inclusion Terms

Familial isolated hypoparathyroidism

Inclusion Terms

Familial hypoparathyroidism

Inclusion Terms

Parathyroid tetany

Code Also
  • , 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)

Child Codes (More Specific Codes for E20):

E20.0 - Idiopathic hypoparathyroidism E20.1 - Pseudohypoparathyroidism E20.8 - Other hypoparathyroidism E20.81 - Hypoparathyroidism due to impaired parathyroid hormone secretion E20.810 - Autosomal dominant hypocalcemia E20.811 - Secondary hypoparathyroidism in diseases classified elsewhere E20.812 - Autoimmune hypoparathyroidism E20.818 - Other specified hypoparathyroidism due to impaired parathyroid hormone secretion E20.819 - Hypoparathyroidism due to impaired parathyroid hormone secretion, unspecified E20.89 - Other specified hypoparathyroidism E20.9 - Hypoparathyroidism, unspecified

About ICD-10-CM Code E20 (Hypoparathyroidism)

ICD-10-CM code E20 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM E20 became effective on October 1, 2024.

This page provides detailed information about E20 - Hypoparathyroidism. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Hypoparathyroidism.