ICD-10-CM 2027
ICD-10 code for Hurthle cell benign tumor
From the official ICD-10-CM alphabetic index entry “Tumor › Hurthle cell (benign)”. Page updated September 29, 2026.
About coding Hurthle cell benign tumor
The ICD-10-CM code for Hurthle cell benign tumor is D34 (Benign neoplasm of thyroid gland). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on D34.
Use an additional code to identify any functional activity.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 643 (Endocrine Disorders with MCC, relative weight 1.6139), DRG 644 (Endocrine Disorders with CC, relative weight 1.0044) and DRG 645 (Endocrine Disorders without CC/MCC, relative weight 0.7459), in Pre-MDC and MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Hurthle cell benign tumor codes (official index)
- malignant C73 — Malignant neoplasm of thyroid gland
Common questions about Hurthle cell benign tumor ICD-10 codes
What is the ICD-10 code for Hurthle cell benign tumor?
- D34 — Benign neoplasm of thyroid gland. More specific codes apply when the documentation supports them: C73.
What is the ICD-10 code for malignant hurthle cell benign tumor?
- C73 — Malignant neoplasm of thyroid gland.
Is D34 billable?
- Yes. D34 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D34 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D34 as a principal diagnosis.
Is D34 a CC or MCC?
- No. D34 is neither a CC nor an MCC under MS-DRG v44.0.