CS Extension

This input is used for staging

Notes

**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.

Default

999

NAACCR Item

NAACCR #2810
Code Description AJCC 7 T AJCC 6 T Summary Stage 1977 T Summary Stage 2000 T
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)		 Tumor Size Category AJCC7 Tumor Size Pair AJCC6 L L
180 Tumor WITH extraocular extension less than or equal to 5mm in diameter Tumor Size Category AJCC7 Tumor Size Pair AJCC6 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 Tumor Size Pair AJCC6 RE RE
640 Stated as T4 [NOS] with no other information on extension T4NOS Tumor Size Pair AJCC6 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
- 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.