Is E04 a billable ICD-10-CM code?

No. E04 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E04 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of thyroid gland (E00-E07).

What cannot be coded together with E04?

E04 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

E04

E04 — Other nontoxic goiter

Non-billable headerICD-10-CM

E04 is a non-billable header ICD-10-CM code for other nontoxic goiter. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

congenital goiter (NOS) (diffuse) (parenchymatous) (E03.0)
iodine-deficiency related goiter (E00-E02)

Risk adjustment

E04 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 to one of these instead E04

5 child codes. Green means billable.

Questions about E04

Is E04 a billable ICD-10-CM code?: No. E04 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E04 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Disorders of thyroid gland (E00-E07).
What cannot be coded together with E04?: E04 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.