Collaborative Stage

Note 1: Osseous plasmacytomas are localized tumors occurring in the bone. There may be soft tissue extension.
Note 2: Extraosseous (extramedullary) plasmacytomas are plasma cell neoplasms that arise in tissues other than bone. The most common sites are the upper respiratory tract, the gastrointestinal tract, lymph nodes, bladder, central nervous system (CNS), breast, thyroid, testis and skin.
Note 3: Criteria for the diagnosis of multiple myeloma include: presence of clonal bone marrow plasma cells or plasmacytoma, presence of an M-protein in serum and/or urine, and the presence of related organ or tissue impairment. Do not use this criteria to determine the diagnosis of multiple myeloma. Code according to histologic confirmation or physician statement according to the AJCC 7th edition.
Note 4: Multiple myeloma or plasma cell myeloma is a widely disseminated plasma cell neoplasm, characterized by a single clone of plasma cells derived from B cells that grows in the bone marrow. It is always coded to 810 or 820 for systemic involvement.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
100	OBSOLETE DATA RETAINED V0203 Localized disease (single/solitary/unifocal/isolated/mono-ostotic), may be coded for: Plasmacytoma, NOS (M-9731/3)(solitary myeloma) Plasmacytoma, extramedullary (M-9734/3) (not occurring in bone)	ERROR	NA	L	L
110	Single plasmacytoma lesion WITHOUT soft tissue extension or unknown if soft tissue extension (9731)	NA	NA	L	L
200	Single plasmacytoma lesion WITH soft tissue extension (9731)	NA	NA	L	L
300	Single plasmacytoma lesion occurring in tissue other than bone (9734)	NA	NA	L	L
400	Multiple osseous or multiple extraosseous plasmacytoma lesions (9731, 9734)	NA	NA	D	D
500	Plasmacytoma, NOS (9731) Not stated if single or multiple, not stated if osseous or extraosseous	NA	NA	L	L
800	OBSOLETE DATA RETAINED V0203 Systemic disease (poly-ostotic): All histologies including those in 100	ERROR	NA	D	D
810	Plasma cell myeloma/multiple myeloma/myelomatosis (9732)	NA	NA	D	D
820	Myeloma, NOS Excludes plasma cell myeloma or multiple myeloma (see code 810)	NA	NA	D	D
999	Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record	NA	NA	D	D

CS Extension