EOD Primary Tumor

Notes

**Note 1:** **Multiple simultaneous tumors** * In the case of multiple simultaneous tumors, code the tumor with the greatest extension. **Note 2:** **In transit metastases** * In transit metastasis is defined as a tumor distinct from the primary lesion and located either between the primary lesion and the draining regional lymph node(s) or distal to the primary lesion. * In transit metastasis with positive lymph node(s) are coded under EOD Regional Nodes.
Code Description SS2018 T
000 In situ, intraepidermal, intraepithelial, noninvasive IS
100 Confined to site of origin * Lesion(s) confined to dermis * Subcutaneous tissue (through entire dermis) Localized, NOS L
400 Direct extension to - Bone - Cartilage - Fascia - Skeletal muscle RE
700 Further contiguous extension D
800 No evidence of primary tumor U
999 Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only U
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