2020 ICD-10-CM Diagnosis Code E26

Hyperaldosteronism

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • E26 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM E26 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of E26 - other international versions of ICD-10 E26 may differ.
The following code(s) above E26 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to E26:
  • E00-E89
    2020 ICD-10-CM Range E00-E89

    Endocrine, nutritional and metabolic diseases

    Note
    • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
    Type 1 Excludes
    • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
    Endocrine, nutritional and metabolic diseases
  • E20-E35
    2020 ICD-10-CM Range E20-E35

    Disorders of other endocrine glands

    Type 1 Excludes
    Disorders of other endocrine glands
Clinical Information
  • A condition caused by the overproduction of aldosterone. It is characterized by sodium retention and potassium excretion with resultant hypertension and hypokalemia.
  • Abnormality of electrolyte function caused by excessive secretion of aldosterone by the adrenal cortex.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To E26
E24.1 Nelson's syndrome
E24.2 Drug-induced Cushing's syndrome
E24.3 Ectopic ACTH syndrome
E24.4 Alcohol-induced pseudo-Cushing's syndrome
E24.8 Other Cushing's syndrome
E24.9 Cushing's syndrome, unspecified
E25 Adrenogenital disorders
E25.0 Congenital adrenogenital disorders associated with enzyme deficiency
E25.8 Other adrenogenital disorders
E25.9 Adrenogenital disorder, unspecified
E26 Hyperaldosteronism
E26.0 Primary hyperaldosteronism
E26.01 Conn's syndrome
E26.02 Glucocorticoid-remediable aldosteronism
E26.09 Other primary hyperaldosteronism
E26.1 Secondary hyperaldosteronism
E26.8 Other hyperaldosteronism
E26.81 Bartter's syndrome
E26.89 Other hyperaldosteronism
E26.9 Hyperaldosteronism, unspecified
E27 Other disorders of adrenal gland

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.