E03 — Other hypothyroidism

Not billable

Is E03 billable?

No — E03 is a non-billable header code. E03 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath E03.

Billable codes under this header

E03 at a glance

Code	E03
Description	Other hypothyroidism
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with E03 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

iodine-deficiency related hypothyroidism (E00-E02)
postprocedural hypothyroidism (E89.0)

Excludes1 — never code together — inherited from Chapter 4

The conditions below can never be reported together with E03 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

What codes fall under E03? (8)

How long has E03 existed?

E03 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with E03?

ICD-10-CM declares these codes mutually exclusive with E03 — exactly one of each pair can be correct for a given encounter.