NAACCR Item #3887: Measured Basal Diameter
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3,887 | 4 | NAACCR | 2018 | 18 |
NAACCR XML: Tumor.measuredBasalDiameter
Description
Measured Basal Diameter, the largest basal diameter of a uveal melanoma, is a prognostic indicator for this tumor.
Rationale
Measured Basal Diameter is listed as a Registry Data Collection Variable in AJCC. It was previously collected as Uveal Melanoma, CS SSF# 2.
Codes
| 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.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 |
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.