E27.1
Billable codePrimary adrenocortical insufficiency
The ICD-10 code for primary adrenocortical insufficiency is E27.1.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Addison's disease
- Autoimmune adrenalitis
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E27.0Other adrenocortical overactivity
- E27.2Addisonian crisis
- E27.3Drug-induced adrenocortical insufficiency
- E27.4Other and unspecified adrenocortical insufficiencynon-billable header
- E27.5Adrenomedullary hyperfunction
- E27.8Other specified disorders of adrenal gland
- E27.9Disorder of adrenal gland, unspecified
- E27.1Primary adrenocortical insufficiency
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 25541Approximate match
Associated MS-DRGs
E27.1 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.