E34.0 – Carcinoid syndrome

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

Non-billable header

ICD-10-CM code E34.0

Code: E34.0 (claims format: E340)
Description: Carcinoid syndrome
Billable: No – use a more specific code below
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

Billable codes under E34.0

E34.0 is a header code and cannot be used on claims. Choose the most specific code:

E34.00 – Carcinoid syndrome, unspecifiedBillable
E34.01 – Carcinoid heart syndromeBillable
E34.09 – Other carcinoid syndromeBillable

Notes for E34.0

Code also:

the underlying disorder, such as:
primary neuroendocrine tumors (C7A.-)
secondary neuroendocrine tumors (C7B.-)

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)

Related codes in E34

E34.1 – Other hypersecretion of intestinal hormonesBillable
E34.2 – Ectopic hormone secretion, not elsewhere classifiedBillable
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 E34.0?

E34.0 is the ICD-10-CM code for carcinoid syndrome, in the block E20-E35 (Disorders of other endocrine glands).

Is E34.0 a billable code?

No. E34.0 is a header code with more specific child codes; report one of the billable codes listed above.

What category does E34.0 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.