CS Extension

Notes

**Note 1**: The substantia propria is the stromal tissue of the conjunctiva underlying the epithelium. The bulbar conjunctiva covers the eyeball, the palpebral conjunctiva lines the eyelids, and the forniceal conjunctiva covers the junction of the eyelid and eyeball. The caruncle is the fleshy prominence at the inner corner of the eye lined by conjunctival epithelium. **Note 2**: Tumors confined to the epithelium are staged as Tis in AJCC 7th Edition. Unless corneal extension is present, they are staged as T1 in AJCC 6th Edition. **Note 3**: Quadrants of involvement are coded in CS Site-Specific Factor 2.

Code	Description	AJCC 7 T	AJCC 6 T	Summary Stage 1977 T	Summary Stage 2000 T
000	In situ, intraepithelial, noninvasive Melanoma confined to conjunctival epithelium	Tis	T1	IS	IS
005	Melanoma confined to conjunctival epithelium with corneal extension	Tis	Determine Correct Table for AJCC 6 T	RE	RE
100	OBSOLETE DATA RETAINED V0200 SS1977 and SS2000 derivation changed to In situ Tumor(s) of bulbar conjunctiva confined to the epithelium occupying one quadrant or less	ERROR:	T1	IS	IS
120	OBSOLETE DATA RETAINED V0200 SS1977 and SS2000 derivation changed to In situ Tumor(s) of bulbar conjunctiva confined to the epithelium occupying more than one quadrant	ERROR:	T1	IS	IS
150	OBSOLETE DATA CONVERTED V0200 See code 330 Tumor(s) of bulbar conjunctiva, NOS	ERROR:	ERROR:	ERROR:	ERROR:
300	Localized, NOS	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	L	L
310	Stated as T1a with no other information on extension	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	L	L
315	Stated as T1b with no other information on extension	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	L	L
320	Stated as T1c with no other information on extension	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	L	L
325	Stated as T1d with no other information on extension	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	L	L
330	Tumor(s) of bulbar conjunctiva NOS Stated as T1 NOS with no other information on extension	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	L	L
335	Tumor(s) of bulbar conjunctiva, NOS WITH corneal extension	Determine Correct Table for AJCC 7 T	Determine Correct Table for AJCC 6 T	RE	RE
400	OBSOLETE DATA REVIEWED AND CHANGED V0200 Recoded to 330 or 335 depending on corneal involvement Tumor of bulbar conjunctiva, thickness not stated, WITH invasion of substantia propria (or with corneal extension, NOS)	ERROR:	ERROR:	ERROR:	ERROR:
410	OBSOLETE DATA REVIEWED AND CHANGED V0200 Recoded to 415 or 425 depending on corneal involvement Tumor of bulbar conjunctiva, not more than 0.8 mm in thickness, WITH invasion of substantia propria (or with corneal extension, NOS)	ERROR:	ERROR:	ERROR:	ERROR:
415	OBSOLETE DATA RETAINED V0200 CSv2 code, data recoded from code 410 Tumor of bulbar conjunctiva, not more than 0.8 mm in thickness, WITHOUT corneal extension	ERROR:	Determine Correct Table for AJCC 6 T	L	L
420	OBSOLETE DATA REVIEWED AND CHANGED V0200 Recoded to 430 or 435 depending on corneal involvement Tumor of bulbar conjunctiva, more than 0.8 mm in thickness, WITH invasion of substantia propria (or with corneal extension, NOS)	ERROR:	ERROR:	ERROR:	ERROR:
425	OBSOLETE DATA RETAINED V0200 CSv2 code, data recoded from code 410 Tumor of bulbar conjunctiva, not more than 0.8 mm in thickness, WITH corneal extension	ERROR:	Determine Correct Table for AJCC 6 T	RE	RE
430	OBSOLETE DATA RETAINED V0200 CSv2 code, data recoded from code 420 Tumor of bulbar conjunctiva, more than 0.8 mm in thickness, WITHOUT corneal extension	ERROR:	Determine Correct Table for AJCC 6 T	L	L
435	OBSOLETE DATA RETAINED V0200 CSv2 code, data recoded from code 420 Tumor of bulbar conjunctiva, more than 0.8 mm in thickness, WITH corneal extension	ERROR:	Determine Correct Table for AJCC 6 T	RE	RE
440	OBSOLETE DATA RETAINED V0200 CSv1 code, data recoded from code 460 Tumor involves: Caruncle Conjunctival fornix Palpebral conjunctiva	ERROR:	T3	L	L
445	Tumor involves: Conjunctival fornix Palpebral conjunctiva	Determine Correct Table for AJCC 7 T	T3	L	L
450	Tumor involves: Caruncle	Determine Correct Table for AJCC 7 T	T3	L	L
460	OBSOLETE DATA REVIEWED AND CHANGED V0200 Tumors with involvement of sites in code 440 recoded to 440 or 465 depending on corneal involvement 440 + any of (400 to 420)	ERROR:	ERROR:	ERROR:	ERROR:
465	OBSOLETE DATA RETAINED V0200 CSv2 code, data recoded from code 460 440 + Extension to cornea	ERROR:	T3	RE	RE
470	445 + Extension to cornea Involvement of conjunctival fornix or palpebral conjunctiva WITH extension to cornea	Determine Correct Table for AJCC 7 T	T3	RE	RE
475	450 + Extension to cornea Involvement of caruncle WITH extension to cornea	Determine Correct Table for AJCC 7 T	T3	RE	RE
480	Stated as T2a with no other information on extension	Determine Correct Table for AJCC 7 T	T3	L	L
485	Stated as T2b with no other information on extension	Determine Correct Table for AJCC 7 T	T3	L	L
490	Stated as T2c with no other information on extension	Determine Correct Table for AJCC 7 T	T3	L	L
495	Stated as T2d with no other information on extension	Determine Correct Table for AJCC 7 T	T3	L	L
500	Tumor of non-bulbar conjunctiva, NOS Stated as T2 [NOS] with no other information on extension	Determine Correct Table for AJCC 7 T	T3	L	L
700	OBSOLETE DATA RETAINED V0200 Sites separated for staging in V0200 Extension to: Eyelid Globe Orbit	ERROR:	T4	RE	RE
710	Extension to Globe Stated as T3a with no other information on extension	Eval Extension T3 AJCC7	T4	RE	RE
720	Extension to: Eyelid Nasolacrimal system Stated as T3b with no other information on extension	Eval Extension T3 AJCC7	T4	RE	RE
730	Extension to Orbit Stated as T3c with no other information on extension	Eval Extension T3 AJCC7	T4	RE	RE
740	Extension to Sinus Stated as T3d with no other information on extension	Eval Extension T3 AJCC7	T4	D	D
750	Conjunctival melanoma with local invasion NOS Stated as T3 NOS with no other information on extension	T3	T4	RE	RE
800	OBSOLETE DATA RETAINED V0200 Extension to sinus moved to code 740 in V0200 Further contiguous extension, including: Central nervous system	ERROR:	T4	D	D
810	Tumor invades central nervous system Further contiguous extension Stated as T4 NOS with no other information on extension	T4	T4	RE	RE
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown; extension note stated Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

- For CS Extension codes 300-335, 445-450, and 470-500, the pathologic T category for AJCC 7 staging is assigned based on the value of CS Tumor Size/Ext Eval and thickness recorded in CS Site-Specific Factor 1, as shown in the Pathologic Eval Extension Thickness AJCC 7 Table (eval codes 2, 3, 6, 8). The Pathologic Eval Extension Thickness AJCC 7 Table is also used if the CS Tumor Size/Ext Eval code is blank and CS Site-Specific Factor 1 does not equal 998. The clinical T category is assigned based on the value of CS TS/Ext Eval and quadrants recorded in CS Site-Specific Factor 2, as shown in the Clinical Eval Extension Quadrants AJCC 7 Table (eval codes 0, 1, 5, 9). The Clinical Eval Extension Quadrants AJCC 7 Table is also used if the CS Tumor Size/Ext Eval code is blank and CS Site-Specific Factor 1 equals 998. - For CS Extension codes 710- 740, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size/Ext Eval as shown in the Eval Extension T3 AJCC 7 Table for this schema. - For CS Extension codes 005, 305-335, 415, and 425-435, the pathologic T category for AJCC 6 staging is assigned based on the value of CS Tumor Size/Ext Eval and thickness recorded in CS Site-Specific Factor 1 as shown in the Pathologic Eval Extension Thickness AJCC 6 Table (eval codes 2, 3, 6, 8). The Pathologic Eval Extension Thickness AJCC 6 Table is also used if the CS Tumor Size/Ext Eval code is blank and CS Site-Specific Factor 1 does not equal 998. The clinical T category for AJCC 6 staging is assigned based on the value of CS Tumor Size/Ext Eval as shown in the Clinical Eval Extension AJCC 6 Table (eval codes 0,1, 5, 9) for this schema. The Clinical Eval Extension AJCC 6 Table is also used if the CS Tumor Size/Ext Eval code is blank and CS Site-Specific Factor 1 equals 998.