E04.0 — Nontoxic diffuse goiter
E04.0 is a billable, specific ICD-10-CM code for nontoxic diffuse goiter. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Diffuse (colloid) nontoxic goiter
- Simple nontoxic goiter
Excludes1 inherited from the categories above E04.0
These are not written on E04.0, but they bind it: a note on a category applies to every code beneath it. Billing E04.0 with anything listed here is a denial.
Risk adjustment
E04.0 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.
Medicare coverage
E04.0 is named in 11 Medicare coverage policies — 11 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52986Billing and Coding: Biomarkers for Oncology
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A57029Billing and Coding: Ultrasound, Soft Tissues of Head and Neck
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
How E04.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E04.0.
- Bronchocele meaning goiter
- Goiter›simple
- Goiter›nontoxic›diffuse(colloid)
- Goiter›nontoxic›simple
Code history
E04.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share E04. If E04.0 is not quite right, the correct code is usually one of these.
Questions about E04.0
- Is E04.0 a billable ICD-10-CM code?
- Yes. E04.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E04.0 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 E04.0?
- E04.0 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 E04.0 (E04) and apply to it just the same.