Nasopharynx

Primary Site	Histology	Schema Discriminator 1
C110, C112-C113, C118-C119	8000-8700
C111	8000-8700	1

Notes

C110, C112-C113, C118-C119: 8000-8700 C111 and Schema Discriminator 1: Nasopharynx/PharyngealTonsil: 1 (8000-8700) C110 Superior wall of nasopharynx C111 Posterior wall of nasopharynx (excluding pharyngeal tonsil) C112 Lateral wall of nasopharynx C113 Anterior wall of nasopharynx C118 Overlapping lesion of nasopharynx C119 Nasopharynx, NOS **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 9 *Nasopharynx*, 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 * C111 and Schema Discriminator 1: Nasopharynx/PharyngealTonsil: 2 (8000-8700): *Oropharynx (p16-)* and *Oropharynx HPV-Mediated (p16+)* * 8710-8714, 8800-8803, 8810-8905, 8912, 8921, 8932-8934, 8940-8990, 9000-9016, 9030-9043, 9045-9110, 9121-9138, 9141-9230, 9240-9580, 9582: *Soft Tissue Head and Neck* * 8720-8790: *Melanoma Head and Neck* *8804-8806, 8910, 8920, 8930-8931, 8991, 9020, 9044, 9120, 9231, 9581: *Soft Tissue Rare* * 8935-8936: *GIST* * 8992: *Soft Tissue Other* * 9140: *Kaposi Sarcoma* * 9700-9701: *Mycosis Fungoides* **Note 3:** The Schema Discriminator *Nasopharynx/Pharyngeal Tonsil* is used to discriminate between Posterior wall of nasopharynx (adenoid) and Pharyngeal tonsil which are coded to ICD-O-3 code C111

Data Items
Staging Methods
Outputs

Data Items

Name	Default Value	Used in Derivation	NAACCR Item	Required By	Metadata
Year of Diagnosis		No	NAACCR #390 dateOfDiagnosis		None
Primary Site		Yes	NAACCR #400 primarySite		None
Histology		Yes	NAACCR #522 histologicTypeIcdO3		None
Behavior		No	NAACCR #523 behaviorCodeIcdO3		None
Schema Discriminator 1		Yes	NAACCR #3926 schemaDiscriminator1	All	SSDI
Tumor Size Clinical		No	NAACCR #752 tumorSizeClinical		None
Tumor Size Pathological		No	NAACCR #754 tumorSizePathologic		None
Tumor Size Summary	999	No	NAACCR #756 tumorSizeSummary		None
Regional Nodes Positive	99	No	NAACCR #820 regionalNodesPositive		None
Regional Nodes Examined	99	No	NAACCR #830 regionalNodesExamined		None
LVI	9	No	NAACCR #1182 lymphVascularInvasion		None
RX Summ Surgery/Radiation Sequence		No	NAACCR #1380 rxSummSurgRadSeq		None
RX Summ Systemic/Surgery Sequence		No	NAACCR #1639 rxSummSystemicSurSeq		None
EOD Primary Tumor	999	Yes	NAACCR #772 eodPrimaryTumor		None
EOD Regional Nodes	999	Yes	NAACCR #774 eodRegionalNodes		None
EOD Mets	00	Yes	NAACCR #776 eodMets		None
SS2018		No	NAACCR #764 summaryStage2018		None
Grade Clinical	9	No	NAACCR #3843 gradeClinical	CCCR/Canada COC NPCR SEER	SSDI
Grade Pathological	9	No	NAACCR #3844 gradePathological	CCCR/Canada COC NPCR SEER	SSDI
Grade Post Therapy Clin (yc)		No	NAACCR #1068 gradePostTherapyClin	COC NPCR SEER	SSDI
Grade Post Therapy Path (yp)		No	NAACCR #3845 gradePostTherapy	CCCR/Canada COC NPCR SEER	SSDI
Extranodal Exten H&N Clin	8	No	NAACCR #3831 extranodalExtensionHeadNeckClin	COC SEER (RC)	SSDI
Extranodal Exten H&N Path	X.8	No	NAACCR #3832 extranodalExtensionHeadNeckPath	CCCR/Canada COC SEER	SSDI
Lymph Nodes Size of Mets	XX.8	No	NAACCR #3883 lnSize	CCCR/Canada COC SEER	SSDI

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

EOD Mets
EOD Mets
ss2018_m