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ICD-10 Code E27.4: Other and unspecified adrenocortical insufficiency

E27.4 is an ICD-10 diagnosis entry used to group records related to Other and unspecified adrenocortical insufficiency. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

  • May be used when a clinician documents other and unspecified adrenocortical insufficiency in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E20-E35Disorders of other endocrine glands
category
E27Other disorders of adrenal gland
currentE27

Official coding notes

Excludes1 (do not code together)
  • adrenoleukodystrophy [Addison-Schilder] (E71.528)
  • Waterhouse-Friderichsen syndrome (A39.1)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

EndocrinologistGeneral Physician

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
E27.4
Replacement codes
E27.40 — Unspecified adrenocortical insufficiencyE27.49 — Other adrenocortical insufficiency

Common synonyms

Other and unspecified adrenocortical insufficiencyOther and adrenocortical insufficiency

Frequently asked questions

Code details

CodeE27.4
SystemICD10
Display nameOther and unspecified adrenocortical insufficiency
ChapterEndocrine, nutritional and metabolic diseases (E00-E89)
BlockDisorders of other endocrine glands

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code E27.4 for Other and unspecified adrenocortical insufficiency | HealthAssure