Collaborative Stage

Note 1: Ciliary body and Iris are both included in the ICD-O-3 site code of C69.4, but they are staged with different criteria by AJCC. The Schema Discriminator is used to select the CS schema appropriate for coding extension for melanoma of the ciliary body. Obsolete codes identified for primaries of the iris are found in this schema because melanomas of ciliary body and iris were included in a single schema in CS Version 1.
Note 2: Uveal melanomas arise most commonly in the choroid, less frequently in the ciliary body, and least often in the iris. Melanomas of the iris tend to be small, and those arising from or extending to the ciliary body typically are large.
Note 3: AJCC does not recognize in situ melanoma of the ciliary body. Any case so coded will be mapped to unknown AJCC stage, in situ Summary Stage.
Note 4: The AJCC 7th Edition assigns a T value to combinations of measurements for basal diameter and thickness of tumor divided into four Tumor Size Categories in a charted format. The AJCC 6th Edition assigns T values based on three pairs of measurements for basal diameter and thickness, using the basal diameter for classification when the two measurements do not fit into the defined pairs.
Note 5: According to the AJCC, "In clinical practice the largest tumor basal diameter may be estimated in optic disc diameters (dd) (average: 1 dd = 1.5mm). Tumor thickness may be estimated in diopters (average: 2.5 diopters = 1 mm). Other techniques, such as ultrasonography and fundus photography may provide a more accurate measurement.
Note 6: Use codes 160 and 180 if measurements are available to record the largest tumor basal diameter and tumor thickness. Use codes 215-445 only if tumor measurements are not available for coding. Note that code 635, mapped to T4e, is not based on a Tumor Size Category assignment.
Note 7: Use codes 245, 295, 345, and 445 only if the Tumor Size Category is the only information available about the tumor.

^ For CS Extension codes 160 and 180, the T for AJCC 7 staging is assigned based on the values of tumor basal diameter, recorded in CS Site-Specific Factor 2, and thickness, recorded in CS Site-Specific Factor 3. Basal diameter and thickness are mapped to Tumor Size Categories in the Tumor Size Category AJCC 7 Table, and the CS Extension codes and Tumor Size Categories are mapped to T in the Extension Size Category AJCC 7 Table.
* For CS Extension codes 160, 180, 635, and 640, the T for AJCC 6 staging is assigned based on the values of tumor basal diameter, recorded in CS Site-Specific Factor 2, and thickness, recorded in CS Site-Specific Factor 3. Basal diameter and thickness are mapped to tumor size pairs in the Tumor Size Pair AJCC 6 Table, and the CS Extension codes and tumor size pairs are mapped to T in the Extension Size Pair AJCC 6 Table.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ, intraepithelial, noninvasive	TX	TX	IS	IS
100	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Confined to iris, NOS	ERROR	T1NOS	L	L
110	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Limited to iris not more than 3 clock hours in size, WITHOUT melanomalytic glaucoma, or not stated if melanomalytic glaucoma	ERROR	T1a	L	L
130	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Limited to iris more than 3 clock hours in size, WITHOUT melanomalytic glaucoma, or not stated if melanomalytic glaucoma	ERROR	T1b	L	L
140	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Limited to iris WITH melanomalytic glaucoma	ERROR	T1c	L	L
160	Tumor WITHOUT extraocular extension (Or extraocular extension not stated)	^	*	L	L
180	Tumor WITH extraocular extension less than or equal to 5mm in diameter	^	*	RE	RE
210	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor 10 mm or less in greatest diameter and 2.5m or less in greatest height (thickness), not stated if extraocular extension present	ERROR	T1NOS	L	L
215	Tumor WITHOUT extraocular extension (Or extraocular extension not stated) AND stated as Tumor Size Category 1 Stated as T1b with no other information on extension	T1b	T1a	L	L
220	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor 10 mm or less in greatest diameter and 2.5 mm or less in greatest height (thickness), WITHOUT microscopic or macroscopic extraocular extension	ERROR	T1a	L	L
230	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor 10 mm or less in greatest diameter and 2.4mm or less in greatest height (thickness), WITH microscopic extraocular extension	ERROR	T1b	RE	RE
235	Tumor WITH extraocular extension less than or equal to 5 mm in diameter AND stated as Tumor Size Category 1 Stated as T1d with no other information on extension	T1d	T1b	RE	RE
240	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor 10 mm or less in greatest diameter and 2.5 mm or less in greatest height (thickness), WITH macroscopic extraocular extension	ERROR	T1c	RE	RE
245	Tumor Size Category 1 , NOS Stated as T1 [NOS] with no other information on extension	T1NOS	T1NOS	L	L
265	Tumor WITHOUT extraocular extension (Or extraocular extension not stated) AND stated as Tumor Size Category 2 Stated as T2b with no other information on extension	T2b	T2a	L	L
285	Tumor WITH extraocular extension less than or equal to 5 mm in diameter AND stated as Tumor Size Category 2 Stated as T2d with no other information on extension	T2d	T2b	RE	RE
295	Tumor Size Category 2 , NOS Stated as T2 [NOS] with no other information on extension	T2NOS	T2NOS	L	L
300	Localized, NOS	T1NOS	T1NOS	L	L
315	Tumor WITHOUT extraocular extension (Or extraocular extension not stated) AND stated as Tumor Size Category 3 Stated as T3b with no other information on extension	T3b	T3	L	L
335	Tumor WITH extraocular extension less than or equal to 5mm in diameter AND stated as Tumor Size Category 3 Stated as T3d with no other information on extension	T3d	T4	RE	RE
345	Tumor Size Category 3 , NOS Stated as T3 [NOS] with no other information on extension	T3NOS	T3	L	L
410	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Tumor confluent with or extending into the ciliary body and/or choroid WITHOUT melanomalytic glaucoma, or not stated if melanomalytic glaucoma	ERROR	T2NOS	L	L
415	Tumor WITHOUT extraocular extension (Or extraocular extension not stated) AND stated as Tumor Size Category 4 Stated as T4b with no other information on extension	T4b	T3	L	L
420	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Tumor confluent with or extending into the ciliary body and/or choroid WITH melanomalytic glaucoma	ERROR	T2a	L	L
435	Tumor WITH extraocular extension less than or equal to 5mm in diameter AND stated as Tumor Size Category 4 Stated as T4d with no other information on extension	T4d	T4	RE	RE
445	Stated as Tumor Size Category 4 , NOS	T4NOS	T3	L	L
510	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor greater than 10 mm but not more than 16 mm in greatest basal diameter and between 2.5 mm and 10 mm in maximum height (thickness), not stated if extraocular extension present.	ERROR	T2NOS	L	L
520	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor greater than 10 mm but not more than 16 mm in greatest basal diameter and between 2.5 mm and 10 mm in maximum height (thickness), WITHOUT microscopic or macroscopic extraocular extension present.	ERROR	T2a	L	L
530	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor greater than 10 mm but not more than 16 mm in greatest basal diameter and between 2.5 mm and 10 mm in maximum height (thickness), WITH microscopic extraocular extension present.	ERROR	T2b	RE	RE
540	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor greater than 10 mm but not more than 16 mm in greatest basal diameter and between 2.5 mm and 10 mm in maximum height (thickness), WITH macroscopic extraocular extension present.	ERROR	T2c	RE	RE
600	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Tumor confluent with or extending into the ciliary body and/or choroid WITH scleral extension, WITHOUT melanomalytic glaucoma, or not stated if melanomalytic glaucoma	ERROR	T3NOS	L	L
610	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Tumor confluent with or extending into the ciliary body and/or choroid WITH scleral extension, AND melanomalytic glaucoma	ERROR	T3a	L	L
635	Tumor WITH extraocular extension greater than 5mm in diameter Stated as T4e with no other information on extension	T4e	*	RE	RE
640	Stated as T4 [NOS] with no other information on extension	T4NOS	*	L	L
650	OBSOLETE DATA RETAINED V0200 Iris moved to separate schema V0200 FOR IRIS PRIMARY ONLY: Extraocular extension	ERROR	T4	RE	RE
710	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor more than 16 mm in greatest basal diameter and/or greater than 10 mm in maximum height (thickness ), WITHOUT extraocular extension or not stated if extraocular extension present.	ERROR	T3NOS	L	L
750	OBSOLETE DATA RETAINED V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor more than 16 mm in greatest basal diameter and/or greater than 10 mm in maximum height (thickness ), WITH extraocular extension.	ERROR	T4	RE	RE
800	Further contiguous extension	T4NOS	T4	D	D
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

MelanomaCiliaryBody

CS Extension