E34.2 – Ectopic hormone secretion, not elsewhere classified

ICD-10-CM 2027 diagnosis code · Disorders of other endocrine glands

Billable code

ICD-10-CM code E34.2

Code: E34.2 (claims format: E342)
Description: Ectopic hormone secretion, not elsewhere classified
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: E34

Notes for E34.2

Excludes1 (not coded here):

ectopic ACTH syndrome (E24.3)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

E34 – Other endocrine disorders

Excludes1 (not coded here):

pseudohypoparathyroidism (E20.1)

Block E20-E35

Excludes1 (not coded here):

galactorrhea (N64.3)
gynecomastia (N62)

Index terms for E34.2

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in E34

E34.0 – Carcinoid syndromeHeader
E34.1 – Other hypersecretion of intestinal hormonesBillable
E34.3 – Short stature due to endocrine disorderHeader
E34.4 – Constitutional tall statureBillable
E34.5 – Androgen insensitivity syndromeHeader
E34.8 – Other specified endocrine disordersBillable
E34.9 – Endocrine disorder, unspecifiedBillable

Frequently asked questions

What is ICD-10 code E34.2?

E34.2 is the ICD-10-CM code for ectopic hormone secretion, not elsewhere classified, in the block E20-E35 (Disorders of other endocrine glands).

Is E34.2 a billable code?

Yes. E34.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does E34.2 belong to?

It belongs to category E34 – Other endocrine disorders.

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.