Placenta

Primary Site Histology
C589 8000-8700, 8720-8790, 9100-9105, 9700-9701

Notes

8000-8700, 8720-8790, 9100-9105, 9700-9701 C589 Placenta **Note 1:** The following sources were used in the development of this schema * SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998) (https://seer.cancer.gov/archive/manuals/EOD10Dig.3rd.pdf) * SEER Summary Staging Manual-2000: Codes and Coding Instructions (https://seer.cancer.gov/tools/ssm/ssm2000/) * Collaborative Stage Data Collection System, version 02.05: https://cancerstaging.org/cstage/Pages/default.aspx * Chapter 56 *Gestational Trophoblastic Neoplasms*, in the AJCC Cancer Staging Manual, Eighth Edition (2017) published by Springer International Publishing. Used with permission of the American College of Surgeons, Chicago, Illinois. **Note 2:** See the following schemas for the listed histologies * 8710-8714, 8800-8803, 8810-8921, 8932-8934, 8940-8990, 9000-9016, 9030-9043, 9045-9091, 9110-9137, 9141-9230, 9240-9580, 9582: *Soft Tissue Abdomen and Thoracic* * 8804-8806, 8930-8931, 8991, 9020, 9044, 9231, 9581: *Soft Tissue Other* * 8935-8936: *GIST* * 9140: *Kaposi Sarcoma* **Note 3:** If a trophoblastic tumor is not associated with a pregnancy and arises in another site, such as ovary, use the primary site code and the appropriate EOD schema. **Note 4:** Data item *Prognostic Scoring Index* must also be coded to derive a stage group.

Initial Context

Staging Methods

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Summary Stage 2018

Start

Additional Context
eod_2018_t = 90
eod_2018_m = 90
eod_2018_n = 90

Next Step

  2. EOD Primary Tumor
  3. ss2018_t

Next Step

  2. EOD Regional Nodes
  3. ss2018_n

Next Step

  2. EOD Mets
  3. ss2018_m

Next Step

  2. Summary Stage
  3. ss2018_derived

End

Outputs

Name Default Value Description NAACCR Item Metadata
Schema ID 00560 NAACCR #3800
None 		None
Derived Version {{ctx_alg_version}} None None
Derived Summary Stage 2018 9 NAACCR #762
None 		None