Merkel Cell Carcinoma of the Skin (excluding Merkel Cell Carcinoma of Penis, Scrotum, and Vulva)
Primary Site | Histology | Staging Type |
---|---|---|
C440, C442-C449 | 8247 | TNM 7 and Summary Stage |
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
C440 Skin of lip, NOS C442 External ear C443 Skin of ear and unspecified parts of face C444 Skin of scalp and neck C445 Skin of trunk C446 Skin of upper limb and shoulder C447 Skin of lower limb and hip C448 Overlapping lesion of skin C449 Skin, NOS **Note 1:** This schema is based on the UICC chapter *Merkel Cell Carcinoma of Skin,* pages 177-180. * This schema is NOT used for Merkel cell carcinoma of the penis, scrotum or vulva. Each of these has a separate schema. **Note 2:** Laterality must be coded for C442-C443 and C445-C447. For codes C443 and C445, if the tumor is midline (e.g., chin), code 5 (midline) in the laterality field. **Note 3:** Merkel cell carcinoma presenting in nodal or visceral site with primary site unknown is coded to C449, Skin, NOS. **Note 4:** In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. If directly assigning SS2000, use the *Skin Except Eyelid* chapter on page 172 of the [SS2000 on-line manual](http://seer.cancer.gov/tools/ssm/SSSM2000-122012.pdf#page=172).Main Data Items
Additional Data Items
Name | Default Value | Used for Staging | NAACCR Item | Required By | Metadata |
---|---|---|---|---|---|
Year of Diagnosis | <BLANK> | No | NAACCR #390 | None | |
Primary Site | <BLANK> | Yes | NAACCR #400 | None | |
Histology | <BLANK> | Yes | NAACCR #522 | None | |
Behavior | <BLANK> | Yes | NAACCR #523 | None | |
RX Summ Systemic/Surgery Sequence | <BLANK> | Yes | NAACCR #1639 | None | |
RX Summ Surgery/Radiation Sequence | <BLANK> | Yes | NAACCR #1380 | None | |
Regional Nodes Positive | <BLANK> | Yes | NAACCR #820 | None |
Initial Context
Outputs
Name | Default Value | Description | NAACCR Item | Metadata |
---|---|---|---|---|
Derived Version | 1.1 | None | None | |
Derived SEER Clin Stage Group | 88 |
NAACCR #3610
None |
None | |
Derived SEER Path Stage Group | 88 |
NAACCR #3605
None |
None | |
Derived SEER Combined Stage Group | 88 |
NAACCR #3614
None |
None | |
Derived SEER Combined T | 88 |
NAACCR #3616
None |
None | |
Derived SEER Combined N | 88 |
NAACCR #3618
None |
None | |
Derived SEER Combined M | 88 |
NAACCR #3620
None |
None | |
Derived SEER Combined T Source | <BLANK> |
NAACCR #3622
None |
None | |
Derived SEER Combined N Source | <BLANK> |
NAACCR #3624
None |
None | |
Derived SEER Combined M Source | <BLANK> |
NAACCR #3626
None |
None |