E06.0 — Acute thyroiditis
E06.0 is a billable, specific ICD-10-CM code for acute thyroiditis. It is valid for submission on a claim.
Use additional code
Add a secondary code to capture the detail described below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Abscess of thyroid
- Pyogenic thyroiditis
- Suppurative thyroiditis
Risk adjustment
E06.0 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
E06.0 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56729Billing and Coding: Magnetic Resonance Imaging of the Head and Neck
- A57029Billing and Coding: Ultrasound, Soft Tissues of Head and Neck
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
- A57657Billing and Coding: Sedimentation Rate, Erythrocyte
How E06.0 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 E06.0.
- Abscess›thyroid(gland)
- Suppuration, suppurative›thyroid(gland)
- Thyroiditis›acute(nonsuppurative) (pyogenic) (suppurative)
- Thyroiditis›pyogenic
- Thyroiditis›suppurative
Code history
E06.0 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 E06. If E06.0 is not quite right, the correct code is usually one of these.
Questions about E06.0
- Is E06.0 a billable ICD-10-CM code?
- Yes. E06.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E06.0 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 E06.0?
- E06.0 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 E06.0 (E06) and apply to it just the same.