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  6. 2024 ICD-10-CM Code E20.812

2024 ICD-10-CM Diagnosis Code E20.812

Autoimmune hypoparathyroidism

ICD-10-CM Code:
E20.812
ICD-10 Code for:
Autoimmune hypoparathyroidism
Is Billable?
Yes - Valid for Submission
Code Navigator:

Code Classification

  • Endocrine, nutritional and metabolic diseases
    (E00–E89)
    • Disorders of other endocrine glands
      (E20-E35)
      • Hypoparathyroidism
        (E20)

E20.812 is a billable diagnosis code used to specify a medical diagnosis of autoimmune hypoparathyroidism. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Autoimmune hypoparathyroidism

New 2024 ICD-10-CM Code

E20.812 is new to ICD-10-CM code set for the FY 2024, effective October 1, 2023. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2023. This is a new and revised code for the FY 2024 (October 1, 2023 - September 30, 2024).

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Code First

Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • , if applicable, underlying condition such as:
  • autoimmune polyglandular failure E31.0
  • Schmidt's syndrome E31.0

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Replacement Code

E20812 replaces the following previously assigned ICD-10-CM code(s):

  • E20.8 - Other hypoparathyroidism

Code History

  • FY 2024 - Code Added, effective from 10/1/2023 through 9/30/2024