Schema Discriminator 1: Thyroid Gland/Thyroglossal Duct
This input is used for staging
Notes
**Note:** A schema discriminator is used to discriminate between thyroid gland and thyroglossal duct tumors with primary site code C739: Thyroid Gland. Code the site in which the tumor arose. * **Thyroid gland (see code 1) ** Subsites include Thyroid, NOS * **Thyroglossal duct (see code 2) **| Code | Description |
|---|---|
| 1 | Thyroid gland Thyroid, NOS |
| 2 | Thyroglossal duct cyst |