Note 1: For tumor size, some breast cancers cannot be sized pathologically.
Note 2: When coding pathologic size, code the measurement of the invasive component. For example, if there is a large in situ component (e.g., 4 cm) and a small invasive component see Site-Specific Factor 6 to code more
information about the reported tumor size. If the size of invasive component is not given, code the size of the entire tumor and record what it represents in Site-Specific Factor 6.
Note 3: Microinvasion is the extension of cancer cells beyond the basement membrane into the adjacent tissues with no focus more than 0.1 cm in greatest dimension. When there are multiple foci of microinvasion, the size of only the largest focus is used to classify the microinvasion. (Do not use the sum of all the individual foci.)
Code | Description |
---|---|
000 | No mass/tumor found |
001-988 | 001 - 988 millimeters (code exact size in millimeters) |
989 | 989 millimeters or larger |
990 | Microinvasion; microscopic focus or foci only, no size given; described as less than 1 mm |
991 | Described as less than 1 cm |
992 | Described as less than 2 cm |
993 | Described as less than 3 cm |
994 | Described as less than 4 cm |
995 | Described as less than 5 cm |
996 | Mammographic/xerographic diagnosis only, no size given; clinically not palpable |
997 | Paget's Disease of nipple with no demonstrable tumor |
998 | Diffuse |
999 | Unknown; size not stated Not documented in patient record |