E02 vs E04
E02 (Subclinical iodine-deficiency hypothyroidism) compared with E04 (Other nontoxic goiter), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. E04 carries an Excludes1 note covering E02: “iodine-deficiency related goiter (E00-E02)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| E02Subclinical iodine-deficiency hypothyroidism | E04Other nontoxic goiter | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) |
| Definition | Subclinical iodine-deficiency hypothyroidism is a billable ICD-10-CM diagnosis code (E02). | Other nontoxic goiter is a non-billable ICD-10-CM category code (E04). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources