Code | Description | TNM Map | SS77 Map | SS2000 Map |
00 | In situ; noninvasive; intraepithelial | Tis | IS | IS |
10 | Invasive tumor with normal vocal cord mobility confined
to: Supraglottis (one subsite): Aryepiglottic fold Arytenoid cartilage Corniculate cartilage Cuneiform cartilage Epilarynx, NOS False cords Ventricular bands Ventricular cavity Ventricular fold Infrahyoid epiglottis Laryngeal cartilage, NOS Laryngeal (posterior) surface of epiglottis Suprahyoid epiglottis (including tip, lingual {anterior} and laryngeal surfaces) |
T1 | L | L |
20 | Tumor involves more than one subsite of supraglottis WITHOUT fixation or NOS |
T2 | L | L |
30 | Tumor involves adjacent regions(s) of larynx | T2 | L | L |
35 | Impaired vocal cord mobility | T2 | L | L |
40 | Tumor limited to larynx WITH vocal cord fixation | T3 | L | L |
45 | Localized, NOS | T1 | L | L |
52 | Paraglottic space | T3 | RE | RE |
60 | Tumor involves region outside the supraglottis WITHOUT fixation, including: Medial wall of pyriform sinus Mucosa of base of tongue Vallecula |
T2 | RE | RE |
62 | Code 60 WITH fixation | T3 | RE | RE |
65 | Hypopharynx, NOS Postcricoid area Pre-epiglottic tissues |
T3 | RE | RE |
66 | Deep base of tongue | T3 | RE | RE |
67 | Cricoid cartilage | T3 | RE | RE |
68 | Minor thyroid cartilage erosion (e.g., inner cortex) | T3 | RE | D |
70 | Extension to/through: Esophagus Oropharynx Soft tissues of neck Thyroid cartilage (except minor erosion, see code 68) Thyroid gland |
T4a | D | D |
72 | Extension to/through: Extrinsic (strap) muscle(s) Omohyoid Sternohyoid Sternothyroid Thyrohyoid Skin |
T4a | D | D |
73 | Extension to/through: Deep extrinsic muscle of tongue Trachea |
T4a | D | D |
80 | Further contiguous extension, including: Mediastinal structures Prevertebral space Tumor encases carotid artery |
T4b | D | D |
95 | No evidence of primary tumor | T0 | U | U |
99 | Unknown extension Primary tumor cannot be assessed Not documented in patient record |
TX | U | U |