All ICD10 Codes
E27Not billable, use a more specific code below

Other disorders of adrenal gland

In Disorders of other endocrine glands (E20-E35), chapter 4: Endocrine, Nutritional and Metabolic Diseases

9 billable codes under E27: 7 are a CC; 1 map to HCC 51 (Addison's and Cushing's Diseases, Acromegaly, and Other Specified Endocrine Disorders).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Also applies, from Disorders of other endocrine glands (E20-E35)

These notes sit on E20-E35 and apply to every code under it, including E27.

Excludes1: not coded here, use a different code

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers diabetes mellitus coding, including type, insulin and drug use, pump malfunction and secondary diabetes, plus obesity and obesity class codes.

Read Section I.C.4 (page 39)

All codes under E27

E27 can't be used on a claim. Pick a billable code below; grey headings group them.

E27 MS-DRGs

As the principal diagnosis, all 9 billable codes under E27 group to MS-DRG 643, 644, or 645 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Adrenal Gland Disorders

Your adrenal glands are two small organs that sit on top of each kidney. The adrenal glands make different types of hormones you need to stay alive and healthy. Hormones are chemicals that travel in your bloodstream and control how different parts of your body work.

Read more about adrenal gland disorders on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.