Cornea, Retina, Choroid, Ciliary Body, Iris, Overlapping Lesion of Eye, and Other Eye (excluding Melanoma and Retinoblastoma)

Primary Site	Histology	Staging Type
C691-C694, C698-C699	8000-8713, 8800-9136, 9141-9508, 9520-9582, 9700-9701	Summary Stage only

If you are working with a site/histology that only summary stages and you need to directly code it, please use the SEER Summary Stage 2000 manual

Notes

C691 Cornea, NOS C692 Retina C693 Choroid C694 Ciliary body C698 Overlapping lesion of eye and adnexa C699 Eye, NOS **Note 1:** Laterality must be coded for this site. **Note 2:** Melanomas and retinoblastomas are not included in this schema. **Note 3:** TNM is not defined for this schema. If directly assigning Summary Stage 2000 (SS2000), use the *Cornea, Retina, Choroid, Ciliary Body* chapter on page 260 of the [SS2000 on-line manual](https://seer.cancer.gov/tools/ssm/ssm2000/SSSM2000-122012.pdf#page=260).

Data Items
Outputs

Data Items

Name	Default Value	Used for Staging	NAACCR Item	Metadata
Year of Diagnosis	<BLANK>	No	NAACCR #390	None
Primary Site	<BLANK>	Yes	NAACCR #400	None
Histology	<BLANK>	Yes	NAACCR #522	None

Initial Context

Staging Methods

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Outputs

Name	Default Value	NAACCR Item	Metadata
Derived Version	{{ctx_alg_version}}	None	None
Derived SEER Clin Stage Group	88	NAACCR #3610 None	None
Derived SEER Path Stage Group	88	NAACCR #3605 None	None
Derived SEER Combined Stage Group	88	NAACCR #3614 None	None
Derived SEER Combined T	88	NAACCR #3616 None	None
Derived SEER Combined N	88	NAACCR #3618 None	None
Derived SEER Combined M	88	NAACCR #3620 None	None
Derived SEER Combined T Source	<BLANK>	NAACCR #3622 None	None
Derived SEER Combined N Source	<BLANK>	NAACCR #3624 None	None
Derived SEER Combined M Source	<BLANK>	NAACCR #3626 None	None