Specific code 2015 ICD-9-CM Diagnosis Code 255.10
Hyperaldosteronism, unspecified
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 255.10 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 255.10 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 255.10 converts approximately to:
  • 2015/16 ICD-10-CM E26.09 Other primary hyperaldosteronism
  • 2015/16 ICD-10-CM E26.9 Hyperaldosteronism, unspecified
Approximate Synonyms
  • Aldosteronism (disorder)
  • Aldosteronism and nodular hyperplasia, adrenal cortex
  • Aldosteronism with nodular hyperplasia of adrenal cortex (disorder)
  • Aldosteronism, primary
  • Hyperaldosteronism
  • Hyperaldosteronism w nodular hyperplasia of adrenal cortex
  • Hyperaldosteronism with nodular hyperplasia of adrenal cortex
  • Primary aldosteronism
  • Primary hyperaldosteronism
Clinical Information
  • Abnormality of electrolyte function caused by excessive secretion of aldosterone by the adrenal cortex
255.10 Excludes
Applies To
  • Aldosteronism NOS
  • Primary aldosteronism, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 255.10:
  • Aldosteronism (primary) 255.10
    • congenital 255.10
    • glucocorticoid-remediable 255.11
  • Hyperaldosteronism (atypical) (hyperplastic) (normoaldosteronal) (normotensive) (primary) 255.10
  • Hyporeninemia, extreme 790.99
    • in primary aldosteronism 255.10
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 255.10 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.