EOD Primary Tumor
Notes
**Note 1:** **Impaired vocal cord mobility**
* Impaired vocal cord mobility, also described as vocal cord paresis, may suggest invasion of intrinsic laryngeal muscle.
* Fixation of the vocal cord may be described as immobility of the arytenoids noted on endoscopy, vocal cord paralysis, or deviation of larynx to fixed side.
**Note 2:** **Localized tumor**
* Code 100 for localized tumor only if no information is available to identify further extension.
**Note 3:** **Limited to the larynx**
* Tumor limited to the larynx (code 200) includes tumor involving, but limited to, the supraglottis, glottis and subglottis.
| Code |
Description |
SS2018 T |
| 000 |
In situ, intraepithelial, noninvasive |
IS |
| 100 |
Tumor limited to the subglottis
Invasive tumor with normal vocal cord mobility
Localized, NOS |
L |
| 200 |
Tumor involves adjacent regions(s) of larynx
- Glottis
- Supraglottis
WITH normal or impaired mobility
Limited to larynx, NOS |
L |
| 400 |
Tumor limited to larynx with vocal cord fixation
Paraglottic space
Thyroid cartilage (inner cortex) (minor erosion) |
RE |
| 500 |
Base of tongue
Hypopharynx, NOS
Postcricoid area
Pre-epiglottic tissues
Pyriform sinus (pyriform fossa)
Vallecula |
RE |
| 600 |
Cricoid cartilage
Esophagus
Extrinsic muscles of tongue
- Genioglossus
- Geniohyoid
- Hyoglossus
- Mylohyoid
- Palatoglossus
- Styloglossus
Oropharynx, NOS
Skin
Soft tissues of neck
Strap muscle(s)
- Omohyoid
- Sternohyoid
- Sternothyroid
- Thyrohyoid
Thyroid cartilage (outer cortex, NOS)
Thyroid gland
Trachea |
D |
| 700 |
Carotid artery (encased)
Mediastinal structure(s)
Prevertebral space
Further contiguous extension |
D |
| 999 |
Unknown; extension not stated
Primary tumor cannot be assessed
Not documented in medical record
Death Certificate Only |
U |
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998
(2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001.
(3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL)
(4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
(5) Lydiatt, W.M., Patel, S.G., Shah, J.P., et al. **Staging Head and Neck Cancers**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
(6) Patel, S.G., Lydiatt, W.M., Shah, J.P., et al. **Larynx**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
