Is E34.0 a billable ICD-10-CM code?

No. E34.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E34.0 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of other endocrine glands (E20-E35).

What cannot be coded together with E34.0?

E34.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E34.0 (E34) and apply to it just the same.

E34.0

E34.0 — Carcinoid syndrome

Non-billable headerICD-10-CM

E34.0 is a non-billable header ICD-10-CM code for carcinoid syndrome. It cannot be billed on its own: choose one of the more specific child codes below.

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

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

Excludes1 inherited from the categories above E34.0

These are not written on E34.0, but they bind it: a note on a category applies to every code beneath it. Billing E34.0 with anything listed here is a denial.

Written on E34 — Other endocrine disorders

pseudohypoparathyroidism (E20.1)

Risk adjustment

E34.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

What changed, and when. Derived by diffing consecutive CMS release files — which matters when you are defending a code assigned under an earlier edition.

deletedFY2024-FY2026
Carcinoid syndrome

Code to one of these instead E34.0

3 child codes. Green means billable.

Related codes at this level

Codes that share E34. If E34.0 is not quite right, the correct code is usually one of these.

Questions about E34.0

Is E34.0 a billable ICD-10-CM code?: No. E34.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E34.0 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of other endocrine glands (E20-E35).
What cannot be coded together with E34.0?: E34.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E34.0 (E34) and apply to it just the same.