E24.1Billable

Nelson's syndrome

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E24
Effective date
October 1, 2026

Related codes in category E24

E24Cushing's syndromeE24.0Pituitary-dependent Cushing's diseaseYesE24.2Drug-induced Cushing's syndromeYesE24.3Ectopic ACTH syndromeYesE24.4Alcohol-induced pseudo-Cushing's syndromeYesE24.8Other Cushing's syndromeYesE24.9Cushing's syndrome, unspecifiedYes

Frequently asked questions

What is ICD-10 code E24.1?

E24.1 is an ICD-10-CM diagnosis code for Nelson's syndrome.

Is E24.1 a billable code?

Yes. E24.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is E24.1 in?

E24.1 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E24.1 become effective?

E24.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E24.1?

E24.1 belongs to category E24, which includes 7 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.