Middle Ear

Primary Site Histology Staging Type
C301 8000-9136, 9141-9582, 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

C301 Middle ear **Note 1:** Laterality must be coded for this site. **Note 2:** TNM is not defined for this schema. If directly assigning Summary Stage 2000 (SS2000), use the *Nasal Cavity and Middle Ear* chapter on page 126 of the [SS2000 on-line manual](https://seer.cancer.gov/tools/ssm/ssm2000/SSSM2000-122012.pdf#page=126).

Main Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
SSF1: Size of Lymph Nodes 999 No NAACCR #2880
csSiteSpecificFactor1 		CCCR/Canada
COC
SEER		 None
SSF3: Levels I-III, Lymph Nodes for Head and Neck 999 No NAACCR #2900
csSiteSpecificFactor3 		CCCR/Canada
COC
SEER		 None
SSF4: Levels IV-V and Retropharyngeal Lymph Nodes for Head and Neck 999 No NAACCR #2910
csSiteSpecificFactor4 		CCCR/Canada
COC
SEER		 None
SSF5: Levels VI-VII and Facial Lymph Nodes for Head and Neck 999 No NAACCR #2920
csSiteSpecificFactor5 		CCCR/Canada
COC
SEER		 None
SSF6: Parapharyngeal, Parotid, and Suboccipital/Retroauricular Lymph Nodes for Head and Neck 999 No NAACCR #2930
csSiteSpecificFactor6 		CCCR/Canada
COC
SEER		 None
SSF7: Upper and Lower Cervical Node Levels 988 No NAACCR #2861
csSiteSpecificFactor7 		None None
SSF8: Extracapsular Extension Clinically, Lymph Nodes for Head and Neck 988 No NAACCR #2862
csSiteSpecificFactor8 		None None
SSF9: Extracapsular Extension Pathologically, Lymph Nodes for Head and Neck 999 No NAACCR #2863
csSiteSpecificFactor9 		CCCR/Canada
COC
SEER		 None
SSF10: Human Papilloma Virus (HPV) Status 988 No NAACCR #2864
csSiteSpecificFactor10 		None None

Additional Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Year of Diagnosis <BLANK> No NAACCR #390
dateOfDiagnosis 		None
Primary Site <BLANK> Yes NAACCR #400
primarySite 		None
Histology <BLANK> Yes NAACCR #522
histologicTypeIcdO3 		None

Initial Context

Staging Methods

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Outputs

Name Default Value Description NAACCR Item Metadata
Derived Version {{ctx_alg_version}} None None
Derived SEER Clin Stage Group 88 NAACCR #3610
derivedSeerClinStgGrp 		None
Derived SEER Path Stage Group 88 NAACCR #3605
derivedSeerPathStgGrp 		None
Derived SEER Combined Stage Group 88 NAACCR #3614
derivedSeerCmbStgGrp 		None
Derived SEER Combined T 88 NAACCR #3616
derivedSeerCombinedT 		None
Derived SEER Combined N 88 NAACCR #3618
derivedSeerCombinedN 		None
Derived SEER Combined M 88 NAACCR #3620
derivedSeerCombinedM 		None
Derived SEER Combined T Source <BLANK> NAACCR #3622
derivedSeerCmbTSrc 		None
Derived SEER Combined N Source <BLANK> NAACCR #3624
derivedSeerCmbNSrc 		None
Derived SEER Combined M Source <BLANK> NAACCR #3626
derivedSeerCmbMSrc 		None