Measured Basal Diameter
This input is used for staging
Notes
**Note 1:** Physician statement of measured basal diameter (not the same as tumor size) can be used to code this data item when no other information is available. **Note 2:** Code Measured Basal Diameter of tumor not size. Record actual measurement in millimeters (mm) to nearest tenth from clinical documentation, or from a pathology report if surgery performed.| 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 |