CS Extension
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 iris. Obsolete codes identified for primaries of the ciliary body 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 iris. Any case so coded will be mapped to unknown AJCC stage and in situ Summary Stage.| 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 FOR IRIS PRIMARY ONLY: Confined to iris, NOS |
ERROR: | T1NOS | L | L |
| 110 | Limited to iris not more than 3 clock hours in size, WITHOUT melanomalytic (secondary) glaucoma, or not stated if melanomalytic (secondary) glaucoma Stated as T1a with no other information on extension |
T1a | T1a | L | L |
| 130 | Limited to iris more than 3 clock hours in size, WITHOUT melanomalytic (secondary) glaucoma, or not stated if melanomalytic (secondary) glaucoma Stated as T1b with no other information on extension |
T1b | T1b | L | L |
| 140 | Limited to iris WITH melanomalytic (secondary) glaucoma Stated as T1c with no other information on extension |
T1c | T1c | L | L |
| 160 | Limited to iris, NOS Stated as T1 [NOS] with no other information on extension |
T1NOS | T1NOS | L | L |
| 210 | OBSOLETE DATA RETAINED V0200 Ciliary body moved to separate schema V0200 FOR CILIARY BODY PRIMARY ONLY: Tumor 10 mm or less in greatest diameter and 2.5 mm or less in greatest height (thickness), not stated if extraocular extension present |
ERROR: | T1NOS | L | L |
| 220 | OBSOLETE DATA RETAINED V0200 Ciliary body moved to separate schema 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: | T1b | L | L |
| 230 | OBSOLETE DATA RETAINED V0200 Ciliary body moved to separate schema 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 microscopic extraocular extension. |
ERROR: | T1b | L | L |
| 240 | OBSOLETE DATA RETAINED V0200 Ciliary body moved to separate schema 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 | L | L |
| 300 | Localized, NOS | T1NOS | T1NOS | L | L |
| 410 | Tumor confluent with or extending into the ciliary body and/or choroid WITHOUT melanomalytic (secondary) glaucoma, or not stated if melanomalytic (secondary) glaucoma Stated as T2 [NOS] with no other information on extension |
T2NOS | T2NOS | L | L |
| 420 | Tumor confluent with or extending into the ciliary body and/or choroid WITH melanomalytic (secondary) glaucoma Stated as T2a with no other information on extension |
T2a | T2a | L | L |
| 510 | OBSOLETE DATA RETAINED V0200 Ciliary body moved to separate schema 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 Ciliary body moved to separate schema 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 Ciliary body moved to separate schema 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 Ciliary body moved to separate schema 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 | Tumor confluent with or extending into the ciliary body and/or choroid WITH scleral extension, WITHOUT melanomalytic (secondary) glaucoma, or not stated if melanomalytic (secondary) glaucoma Stated as T3 [NOS] with no other information on extension |
T3NOS | T3NOS | L | L |
| 610 | Tumor confluent with or extending into the ciliarybody and/or choroid WITH scleral extension WITH melanomalytic (secondary) glaucoma Stated as T3a with no other information on extension |
T3a | T3a | L | L |
| 650 | OBSOLETE DATA RETAINED V0200 FOR IRIS PRIMARY ONLY: Extraocular extension |
ERROR: | T4 | RE | RE |
| 660 | Tumor with extrascleral (extraocular) extension less than or equal to 5mm in diameter Stated as T4a with no other information on extension |
T4a | T4 | RE | RE |
| 670 | Tumor with extrascleral (extraocular) extension greater than 5mm in diameter Stated as T4b with no other information on extension |
T4b | T4 | RE | RE |
| 680 | Extrascleral (extraocular) extension, measurement of diameter not specified | T4NOS | T4 | RE | RE |
| 710 | OBSOLETE DATA RETAINED V0200 Ciliary body moved to separate schema 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 Ciliary body moved to separate schema 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 | T4b | 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 |