ICD-10 Code E27.2 – Addisonian crisis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E27.2 – Addisonian crisis
What it is
E27.2 identifies Addisonian crisis, also called acute adrenal insufficiency. It refers to a sudden, severe failure of the adrenal glands that requires urgent clinical attention.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include marked weakness, dehydration, hypotension, abdominal symptoms, and altered mental status in an acute adrenal emergency.
When to use this code
Use E27.2 when the record clearly documents Addisonian crisis, adrenal crisis, or acute adrenal insufficiency. It is appropriate for emergency visits, inpatient admissions, or complications in patients with known adrenal insufficiency. Check documentation if the note only mentions chronic adrenal disease without an acute crisis.
Do not use for
Do not use this code for stable chronic adrenal insufficiency without crisis. Also avoid it when the chart only suggests possible adrenal problems and the diagnosis is not confirmed; check documentation.
Coding tip
Code E27.2 only when the provider documents an acute adrenal crisis, not just a history of Addison disease.