Measured Basal Diameter (Melanoma Iris)

Organization	Field Name	ID#	ID Name	Required

Organization	Field Name	ID#	ID Name	Required
KCR	Measured Basal Diameter	34084	MEASBasalDiameter	yes
SEER	Measured Basal Diameter	3887	measuredBasalDiameter	yes

Note 1 Physician Statement

Physician statement of measured basal diameter can be used to code this data item when no other information is available.

Note 2 Code measured basal diameter of tumor not Tumor size

Record actual measurement in millimeters (mm) to nearest tenth from clinical documentation, or from a pathology report if surgery performed

Code	Description

Code	Description
0.0	No mass/tumor found
0.1-99.9	0.1 - 99.9 millimeters (mm) (Exact measurement to nearest tenth of mm)
XX.0	100 millimeters (mm) or larger
XX.1	Described as "less than 3 mm"
XX.2	Described as "at least" 3 mm
XX.3	Described as "at least" 6 mm
XX.4	Described as "at least" 9 mm
XX.5	Described as "at least" 12 mm
XX.6	Described as "at least" 15 mm
XX.7	Described as "at least" 18 mm
XX.8	Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code XX.8 may result in an edit error.)
XX.9	Not documented in medical record Cannot be determined by pathologist Measured Basal Diameter not assessed or unknown if assessed