Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/14/2009 [ Schema ]

CS Extension

Note 1: Use code 450 for localized tumor ONLY if no information is available to assign codes 100 through 400.
Note 2: Use code 375,775, 810, or 815 if the physician's assignment of T category is the ONLY information available about the extent of the tumor.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive	Tis	Tis	IS	IS
100	Invasive tumor confined to site of origin Stated as T1 NOS with no other information on extension	T1	T1	L	L
200	Tumor involves more than one subsite of supraglottis, glottis,or subglottis WITHOUT fixation or NOS	T2	T2	L	L
300	Tumor involves adjacent regions(s) of larynx	T2	T2	L	L
350	Impaired vocal cord mobility	T2	T2	L	L
375	Stated as T2 with no other information on extension	T2	T2	L	L
400	Tumor limited to larynx WITH vocal cord fixation Stated as T3 with no other information on extension	T3	T3	L	L
450	Localized, NOS	T1	T1	L	L
600	Base of tongue Hypopharynx, NOS Postcricoid area Pre-epiglottic tissues Pyriform sinus (pyriform fossa) Vallecula	T4a	T4a	RE	RE
680	Extension to/through cricoid cartilage and thyroid cartilage	T4a	T4a	RE	D
700	Extension to/through: Cervical esophagus Deep muscle of tongue Extrinsic (strap) muscles Omohyoid Sternohyoid Sternothyroid Thyrohyoid Oropharynx Skin Soft tissues of neck Thyroid gland Trachea	T4a	T4a	D	D
775	Stated as T4a with no other information on extension	T4a	T4a	RE	RE
800	Further contiguous extension, including: Mediastinal structures Prevertebral space Carotid artery (encased)	T4b	T4b	D	D
810	Stated as T4b with no other information on extension	T4b	T4b	D	D
815	Stated as T4 NOS with no other information on extension	T4NOS	T4NOS	RE	RE
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown extension Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U