CS Extension: Esophagus

Note: Ignore intraluminal extension to adjacent segment(s) of esophagus or to cardia of stomach and code depth of invasion or extra-esophageal spread as indicated.

Code Description TNM SS77 SS2000
00 In situ; noninvasive; intraepithelial Tis IS IS
10 Invasive tumor confined to mucosa, NOS (including intramucosal, NOS) T1 L L
11 Invades lamina propria T1 L L
12 Invades muscularis mucosae T1 L L
16 Invades submucosa T1 L L
20 Muscularis propria invaded T2 L L
30 Localized, NOS T1 L L
40
  • Adventitia and/or soft tissue invaded
  • Esophagus is described as "FIXED"
T3 RE RE
45 Extension to adjacent (connective) tissue without perforation of visceral peritoneum:
  • Gastric artery
  • Ligaments:
  • Gastrocolic
  • Gastrohepatic
  • Gastrosplenic
  • Omentum, NOS
  • Greater
  • Lesser
  • Perigastric fat
T2b RE RE
60 Tumor invades adjacent structures
  • Cervical esophagus:
    • Blood vessel(s):
    • Carotid artery
    • Jugular vein
    • Subclavian artery
    • Thyroid gland
  • Intrathoracic, upper or mid-portion, esophagus:
    • Blood vessel(s), major:
    • Aorta
    • Azygos vein
    • Pulmonary artery/vein
    • Vena cava
    • Carina
    • Diaphragm
    • Main stem bronchus
    • Trachea
  • Intrathoracic, lower portion (abdominal), esophagus:
    • Blood vessel(s):
    • Aorta
    • Gastric artery/vein
    • Vena cava
    • Diaphragm, not fixed, or NOS
    • Stomach, cardia (via serosa)
T4 RE RE
65
  • Cervical esophagus:
    • Carina
    • Cervical vertebra(e)
    • Hypopharynx
    • Larynx
    • Trachea
  • Intrathoracic esophagus:
    • Lung via bronchus
    • Mediastinal structure(s), NOS
    • Pleura
  • Rib(s)
  • Thoracic vertebra(e)
T4 RE RE
78 Thoracic/middle esophagus:
  • Pericardium
T4 RE D
80 Further contiguous extension:
  • Cervical/upper esophagus:
    • Lung
    • Main stem bronchus
    • Pleura
  • Abdominal/lower esophagus:
    • Diaphragm fixed
T4 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
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