Cystic Duct

Primary Site Histology Schema Discriminator: BileDuctsDistal/BileDuctsPerihilar/CysticDuct Staging Type
C240 8000-8152, 8154-8231, 8243-8245, 8250-8576, 8940-8950, 8980-8981 030 TNM 7 and Summary Stage
C240 8153, 8232-8242, 8246-8249, 8577-8939, 8951-8979, 8982-9136, 9141-9582, 9700-9701 030 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

C240 Extrahepatic Bile Duct **Note 1:** This schema is based on the UICC chapter *Gallbladder,* pages 118-121. * In the TNM 7th edition, Cystic Duct was removed from the Extrahepatic Bile Duct staging chapter and added to the Gallbladder staging chapter * **Site-Specific Factor 25, Schema Discriminator: BileDuctsDistal/BileDuctsPerihilar/CysticDuct** is used to discriminate between bile duct distal, bile duct perihilar and cystic duct which are coded to ICD-O-3 code C240 **Note 2:** In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. If directly assigning SS2000, use the *Extrahepatic Bile Duct* chapter on page 112 of the [SS2000 on-line manual](https://seer.cancer.gov/tools/ssm/ssm2000/SSSM2000-122012.pdf#page=112).

Main Data Items

Name Default Value Used in Derivation NAACCR Item Required By Metadata
Clinical T Yes NAACCR #940
tnmClinT 		None
Clinical N Yes NAACCR #950
tnmClinN 		None
Clinical M Yes NAACCR #960
tnmClinM 		None
TNM Clin Stage Group 99 Yes NAACCR #970
tnmClinStageGroup 		None
Pathologic T Yes NAACCR #880
tnmPathT 		None
Pathologic N Yes NAACCR #890
tnmPathN 		None
Pathologic M Yes NAACCR #900
tnmPathM 		None
TNM Path Stage Group 99 Yes NAACCR #910
tnmPathStageGroup 		None
SSF25: Schema Discriminator: BileDuctsDistal/BileDuctsPerihilar/CysticDuct 999 Yes NAACCR #2879
csSiteSpecificFactor25 		All None

Additional 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 Yes NAACCR #523
behaviorCodeIcdO3 		None
RX Summ Systemic/Surgery Sequence Yes NAACCR #1639
rxSummSystemicSurSeq 		None
RX Summ Surgery/Radiation Sequence Yes NAACCR #1380
rxSummSurgRadSeq 		None
Regional Nodes Positive Yes NAACCR #820
regionalNodesPositive 		None

Initial Context

Staging Methods

Expand All | Collapse All

TNM 7 Stage

Inclusion Table

Histology
8000-8152
8154-8231
8243-8245
8250-8576
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
8000-8152
8154-8231
8243-8245
8250-8576
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