E27.1 – Primary adrenocortical insufficiency
ICD-10-CM 2027 diagnosis code · Disorders of other endocrine glands
ICD-10-CM code
E27.1
- Code
E27.1(claims format:E271)- Description
- Primary adrenocortical insufficiency
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 4. Endocrine, nutritional and metabolic diseases (E00-E89)
- Block
- E20-E35 Disorders of other endocrine glands
- Parent codes
- E27
Notes for E27.1
Applicable to:
- Addison's disease
- Autoimmune adrenalitis
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block E20-E35
Index terms for E27.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Melasma, adrenal
- Addison's, disease
- Melanosis, adrenal
- Melasma, suprarenal
- Melanosis, suprarenal
- Melanosis, addisonian
- Hypoadrenocorticism, primary
- Myopathy, in, Addison's disease
- Adrenalitis, adrenitis, autoimmune
- Disease, diseased, bronze Addison's
- Atrophy, atrophic, adrenal, primary
- Hypoadrenalism, hypoadrenia, primary
- Hypofunction, adrenocortical, primary
- Atrophy, atrophic, suprarenal, primary
- Insufficiency, insufficient, adrenal, primary
- Deficiency, deficient, corticoadrenal, primary
- Insufficiency, insufficient, suprarenal, primary
- Insufficiency, insufficient, adrenocortical, primary
- Insufficiency, insufficient, corticoadrenal, primary
Related codes in E27
- E27.0 – Other adrenocortical overactivityBillable
- E27.2 – Addisonian crisisBillable
- E27.3 – Drug-induced adrenocortical insufficiencyBillable
- E27.4 – Other and unspecified adrenocortical insufficiencyHeader
- E27.5 – Adrenomedullary hyperfunctionBillable
- E27.8 – Other specified disorders of adrenal glandBillable
- E27.9 – Disorder of adrenal gland, unspecifiedBillable
Frequently asked questions
What is ICD-10 code E27.1?
E27.1 is the ICD-10-CM code for primary adrenocortical insufficiency, in the block E20-E35 (Disorders of other endocrine glands).
Is E27.1 a billable code?
Yes. E27.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does E27.1 belong to?
It belongs to category E27 – Other disorders of adrenal gland.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.