Is E00 a billable ICD-10-CM code?

No. E00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E00 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 E00?

E00 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

E00

E00 — Congenital iodine-deficiency syndrome

Non-billable headerICD-10-CM

E00 is a non-billable header ICD-10-CM code for congenital iodine-deficiency syndrome. 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.

subclinical iodine-deficiency hypothyroidism (E02)

Use additional code

Add a secondary code to capture the detail described below.

code (F70-F79) to identify associated intellectual disabilities.

Other codes that can never be billed with E00

These codes carry an Excludes1 note pointing at E00. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E00 alone.

E61Deficiency of other nutrient elements
E01Iodine-deficiency related thyroid disorders and allied conditions
E03Other hypothyroidism
E04Other nontoxic goiter

Risk adjustment

E00 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 E00

4 child codes. Green means billable.

Questions about E00

Is E00 a billable ICD-10-CM code?: No. E00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E00 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 E00?: E00 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.