EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** Mucosal melanomas occur throughout the mucosa of the lip and oral cavity (C003-C005, C008-C069, C090-C148) and the nasal cavity and middle ear (C300-C301), accessory sinuses (C310-C319) and the larynx (C320-C329). For a more detailed description of anatomy, refer to the appropriate EOD schema based on the location of the mucosal melanoma. **Note 2:** Code 100 for localized tumors when no other information is available or for extension involving the mucosa only of adjacent sites. **Note 3:** Extension involving the deeper tissues of the primary or adjacent sites are recorded in codes 300, 500 or 600. Code 300 when the only information available is "deep tissue involvement." **Note 4:** Code 700 (Moderately advanced disease, NOS) only when specific information about moderately advanced disease is not available (see codes 300 and 500).Default
999NAACCR Item
NAACCR #772| Code | Description | SS2018 T |
|---|---|---|
| 000 | In situ: noninvasive, intraepithelial | IS |
| 100 | Any size tumor or thickness - Mucosa WITH or WITHOUT soft tissue (immediately underlying) - Confined to site of origin, NOS - Localized, NOS | L |
| 300 | Deep soft tissue involvement Overlying skin | RE |
| 500 | Extension to other regional sites/structures WITHOUT further extension to any sites/structures that are very advanced disease (see code 600) Bone Cartilage Deep extrinsic muscle of tongue - Genioglossus - Hyoglossus - Palatoglossus - Styloglossus | D |
| 600 | Brain Carotid artery Dura Lower cranial nerves (IX, X, XI, XII) Masticator space Mediastinal structures Prevertebral space Skull base Very advanced disease, NOS Further contiguous extension | D |
| 700 | Moderately advanced disease, NOS | RE |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only | U |