Organization

Field Name

ID

Required

KCR

Peripheral Blood Involvement

34103

yes 

SEER

Peripheral Blood Involv

3910

yes 

Note 1 The categories for peripheral blood involvement (B rating) are

  • B0 No significant blood involvement
  • B1 Low blood tumor burden
  • B2 High blood tumor burden

Note 2 Physician statement of B rating can be used to code this data item.

Note 3 If counts or percentages of neoplastic cells and clonality test results are available, but a B rating is not stated by the physician, the registrar can use the information and assign a B rating and code this data item accordingly. If this information is not available, code 9.

Code

Description

B Map

0

Absence of significant blood involvement
5% or less of peripheral blood lymphocytes are atypical (Sezary) cells
Clone unknown
Stated as B0

VALUE:B0

1

Absence of significant blood involvement
5% or less of peripheral blood lymphocytes are atypical (Sezary) cells
Clone negative
Stated as B0a

VALUE:B0a

2

Absence of significant blood involvement:
5% or less of peripheral blood lymphocytes are atypical (Sezary) cells
Clone positive
Stated as B0b

VALUE:B0b

3

Low blood tumor burden
More than 5% of peripheral blood lymphocytes are atypical (Sezary) cells but does not meet the criteria of B2
Clone unknown
Stated as B1

VALUE:B1

4

Low blood tumor burden
More than 5% of peripheral blood lymphocytes are atypical (Sezary) cells but does not meet the criteria of B2
Clone negative
Stated as B1a

VALUE:B1a

5

Low blood tumor burden
More than 5% of peripheral blood lymphocytes are atypical (Sezary) cells but does not meet the criteria of B2
Clone positive
Stated as B1b

VALUE:B1b

6

High blood tumor burden
Greater than or equal to 1000 Sezary cells per microliter (uL)
Clone positive
Stated as B2

VALUE:B2

7

Test ordered, results not in chart

VALUE:BX

9

Not documented in medical record
Peripheral Blood Involvement not assessed or unknown if assessed

VALUE:BX

<BLANK>

Death Certificate Only, no value provided

VALUE:BX