EOD Primary Tumor
Notes
**Note:** Involvement of or extension to bone includes any type of tumor extension to the bone, such as erosion, invasion, extension, penetration, or destruction.
| Code |
Description |
SS2018 T |
| 000 |
In situ, intraepithelial, noninvasive |
IS |
| 100 |
Invasive tumor confined to mucosa of one of the following:
- Frontal sinus
- Sphenoid sinus
Localized, NOS |
L |
| 200 |
More than one accessory sinus invaded
Destruction of bony wall of sinus
Bone, cartilage
- Facial bones
- Maxilla
- Orbital structure(s)
- Pterygoid fossa
- Zygoma
Brain
Cranial nerves
Hard palate
Muscles
- Masseter
- Pterygoid
Nasal cavity
- Floor
- Lateral wall
- Nasal cavity, NOS
- Septum
- Turbinates
Nasopharynx
Orbital contents, including eye
Soft tissue
Skin |
RE |
| 700 |
Further contiguous extension |
D |
| 800 |
No evidence of primary tumor |
U |
| 999 |
Unknown; extension not stated
Primary tumor cannot be assessed
Not documented in patient 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)
