D34 — Benign neoplasm of thyroid gland
D34 is a billable, specific ICD-10-CM code for benign neoplasm of thyroid gland. It is valid for submission on a claim.
Use additional code
Add a secondary code to capture the detail described below.
- code to identify any functional activity
Risk adjustment
D34 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
D34 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
- A56464Billing and Coding: Flow Cytometry
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A56695Billing and Coding: Implantable Infusion Pump
How D34 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 D34.
- Adenoma›Hurthle cell
- Hurthle cell›adenoma
- Hurthle cell›tumor
- Tumor›Hurthle cell(benign)
- Adenoma›colloid›unspecified site
- Adenoma›fetal›unspecified site
- Adenoma›follicular›unspecified site
- Adenoma›macrofollicular›unspecified site
- Adenoma›microfollicular›unspecified site
Questions about D34
- Is D34 a billable ICD-10-CM code?
- Yes. D34 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D34 sit in the tabular list?
- Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).