Nasopharynx (excluding Malignant Melanoma)

Primary Site Histology Schema Discriminator: Nasopharynx/PharyngealTonsil Staging Type
C110, C112-C113, C118-C119 8000-8576, 8940-8950, 8980-8981 <Any value> TNM 7 and Summary Stage
C110, C112-C113, C118-C119 8577-8713, 8800-8939, 8951-8979, 8982-9136, 9141-9582, 9700-9701 <Any value> Summary Stage only
C111 8000-8576, 8940-8950, 8980-8981 010 TNM 7 and Summary Stage
C111 8577-8713, 8800-8939, 8951-8979, 8982-9136, 9141-9582, 9700-9701 010 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

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:** This schema is based on the UICC chapter *Pharynx,* pages 30-38. * Primary sites C118 and C119 are listed in the chapter heading but are not specified in the anatomic subsites in this chapter of the UICC manual; however, they are included in this schema and TNM staged if appropriate histology criteria are met * **Site-Specific Factor 25, Nasopharynx/PharyngealTonsil** is used to discriminate between posterior wall of nasopharynx, staged with nasopharynx, and pharyngeal tonsil, staged with oropharynx. Both sites are coded to ICD-O-3 code C111 **Note 2:** The margin of the choanal orifices, including the posterior margin of the nasal septum, is included with the nasal fossa. **Note 3:** In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. If directly assigning SS2000, use the *Nasopharynx* chapter on page 62 of the [SS2000 on-line manual](https://seer.cancer.gov/tools/ssm/ssm2000/SSSM2000-122012.pdf#page=62).

Main Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Clinical T <BLANK> Yes NAACCR #940
tnmClinT 		None
Clinical N <BLANK> Yes NAACCR #950
tnmClinN 		None
Clinical M <BLANK> Yes NAACCR #960
tnmClinM 		None
TNM Clin Stage Group 99 Yes NAACCR #970
tnmClinStageGroup 		None
Pathologic T <BLANK> Yes NAACCR #880
tnmPathT 		None
Pathologic N <BLANK> Yes NAACCR #890
tnmPathN 		None
Pathologic M <BLANK> Yes NAACCR #900
tnmPathM 		None
TNM Path Stage Group 99 Yes NAACCR #910
tnmPathStageGroup 		None
SSF1: Size of Lymph Nodes 999 No NAACCR #2880
csSiteSpecificFactor1 		CCCR/Canada
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 999 No NAACCR #2864
csSiteSpecificFactor10 		CCCR/Canada
COC
SEER		 None
SSF25: Schema Discriminator: Nasopharynx/PharyngealTonsil 981 Yes NAACCR #2879
csSiteSpecificFactor25 		All 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
Behavior <BLANK> Yes NAACCR #523
behaviorCodeIcdO3 		None
RX Summ Systemic/Surgery Sequence <BLANK> Yes NAACCR #1639
rxSummSystemicSurSeq 		None
RX Summ Surgery/Radiation Sequence <BLANK> Yes NAACCR #1380
rxSummSurgRadSeq 		None
Regional Nodes Positive <BLANK> Yes NAACCR #820
regionalNodesPositive 		None

Initial Context

Staging Methods

Expand All | Collapse All

TNM 7 Stage

Inclusion Table

Histology
8000-8576
8940-8950
8980-8981

Start

Additional Context
Pathologic Stage Group = 90
Clinical Stage Group = 90

Next Step

  2. Parse T
  3. clin_t_prefix
    tmp_clin_t

Next Step

  2. Parse N
  3. clin_n_prefix
    tmp_clin_n

Next Step

  2. Parse M
  3. tmp_clin_m
    clin_m_prefix

Next Step

  2. Parse T
  3. tmp_path_t
    path_t_prefix

Next Step

  2. Parse N
  3. tmp_path_n
    path_n_prefix

Next Step

  2. Parse M
  3. tmp_path_m
    path_m_prefix

Next Step

  2. Determine Default T
  3. Source T
    tmp_path_t
    tmp_clin_t
    tmp_combined_t

Next Step

  2. Determine Default N
  3. tmp_combined_n
    tmp_clin_n
    tmp_path_n
    Source N

Next Step

  2. Determine Default M
  3. tmp_path_m
    tmp_combined_m
    tmp_clin_m
    Source M

Next Step

  2. TNM 7 Stage Group
  3. Clinical Stage Group

Next Step

  2. TNM 7 Path Stage Group
  3. Pathologic Stage Group

Next Step

  2. Adjustments for No Clin or No Path
  3. tmp_combined_n
    tmp_combined_m
    Source T
    Clinical Stage Group
    Pathologic Stage Group
    Source N
    tmp_combined_t
    Source M

End

Combined Stage

Inclusion Table

Histology
8000-8576
8940-8950
8980-8981

Start

Additional Context
Combined Stage Group = 90
Combined N = 90
Combined M = 90
Combined T = 90

Next Step

  2. Stop if No Clin and No Path
  3. Combined M
    Combined N
    Source T
    tmp_continue
    Combined T
    Combined Stage Group
    Source N
    Source M

Next Step

  2. Combined T
  3. Source T
    tmp_combined_t

Next Step

  2. Combined N for Tis Cancers
  3. tmp_combined_n
    Source N

Next Step

  2. Combined M
  3. tmp_combined_m
    tmp_source_m
    Source M

Next Step

  2. Determine Combined Prefix
  3. cmb_t_prefix

Next Step

  2. Determine Combined Prefix
  3. cmb_n_prefix

Next Step

  2. Determine Combined Prefix
  3. cmb_m_prefix

Next Step

  2. Concatenate T
  3. Combined T

Next Step

  2. Concatenate N
  3. Combined N

Next Step

  2. Concatenate M
  3. Combined M

Next Step

  2. TNM 7 Path Stage Group
  3. Combined Stage Group

End

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