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  6. 2024 ICD-10-CM Code E20.811

2024 ICD-10-CM Diagnosis Code E20.811

Secondary hypoparathyroidism in diseases classified elsewhere

ICD-10-CM Code:
E20.811
ICD-10 Code for:
Secondary hypoparathyroidism in diseases classd elswhr
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)

E20.811 is a billable diagnosis code used to specify a medical diagnosis of secondary hypoparathyroidism in diseases classified elsewhere. 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:

  • Hypoparathyroidism due to Wilson disease
  • Secondary hypoparathyroidism

New 2024 ICD-10-CM Code

E20.811 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.
  • underlying condition, if known

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).

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:

  • Manifestation diagnoses - Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Replacement Code

E20811 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