ICD-10 Code E26.8 – Other hyperaldosteronism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E26.8 – Other hyperaldosteronism
What it is
E26.8 identifies hyperaldosteronism that does not fit a more specific ICD-10 category. Use it for excess aldosterone-related conditions documented as other or atypical by the provider.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings may include hypertension, low potassium, or symptoms tied to aldosterone excess, but you should code only what the clinician confirms.
When to use this code
Use E26.8 when the provider documents hyperaldosteronism and specifies a form not captured by a more exact code. It also fits cases labeled “other” or “atypical” hyperaldosteronism in the record.
Check the note for whether the condition is primary, secondary, or due to another known cause. If the documentation is unclear, query for clarification before assigning this code.
Do not use for
Do not use E26.8 when a more specific hyperaldosteronism code applies, or when the chart documents unrelated hypertension without aldosterone excess. Check documentation.
Coding tip
Code E26.8 only after confirming the provider’s wording supports “other” hyperaldosteronism rather than a more specific subtype.