CS Extension

Code Description AJCC 7 T AJCC 6 T Summary Stage 1977 T Summary Stage 2000 T
000 In situ, intraepithelial, noninvasive NA NA IS IS
100 Invasive tumor confined to trachea NA NA L L
300 Localized, NOS NA NA L L
400 Adjacent connective tissue:
Arch of aorta
Azygos vein, right
Brachiocephalic vein
Carotid sheath
Common carotid artery(ies)
Jugular arch
Phrenic nerves
Pretracheal fascia
Recurrent laryngeal nerve
Subclavian artery(ies)
Vagus nerve
NA NA RE RE
600 Adjacent organs/structures:
Cricoid cartilage
Esophagus
Pleura, NOS:
Parietal
Visceral
Right and left main bronchi
Sternum
Thymus
Thyroid gland
Vertebral column
NA NA RE RE
800 Further contiguous extension NA NA D D
950 No evidence of primary tumor NA NA U U
999 Unknown; extension not stated
Primary tumor cannot be assessed
Not documented in patient record
NA NA U U