CS Extension: Supraglottic Larynx

Code Description TNM SS77 SS2000
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
62 Code 60 with fixation T3 RE RE
65 Hypopharynx, NOS
Postcricoid area
Pre-epiglottic tissues
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
  • Unknown extension
  • Primary tumor cannot be assessed
  • Not documented in patient record
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