This code system http://hl7.org/fhir/us/breast-radiology/CodeSystem/BiRadsAssessmentCategoriesCS defines the following codes:
| Code | Display | Definition |
| Category0 | Category 0 (Incomplete) | Need additional Imaging Evaluation and/or prior Mammograms
for comparison.
Recall for additional imaging and/or comparison with
prior examination(s)
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category2 | Category 2 (Benign) | This is a normal assessment.
Benign refers to a condition, tumor, or growth that
is not cancerous.
This means that it does not spread to other parts
of the body.
It does not invade nearby tissue.
Essentially 0% likelihood of malignancy.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category3 | Category 3 (Probably Benign) | A finding assessed using this category should have
a <= 2% likelihood of malignancy,
but greater than the essentially 0% likelihood of
malignancy of a characteristically
benign finding.
A probably benign finding is not expected to change
over the suggested period of
imaging surveillance, but the interpreting physician
prefers to establish stability
of the finding before recommending management limited
to routine mammography screening.
Six month follow-up and/or
surveillance mammography is recommended.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category4 | Category 4 (Suspicious) | This category is reserved for findings that do not
have the classic appearance of
malignancy but are sufficiently suspicious to justify
a recommendation for biopsy.
There is a 2% likelihood of malignancy (cancer).
Almost all recommendations for breast interventional
procedures will come from assessments
made using
this category.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category4A | Category 4A (Low suspicion) | Low suspicion for malignancy.
A malignant finding is not suspected.
A biopsy or other test will likely still be performed
in order to determine.
Tissue diagnosis may be recommended.
Six month follow-up and/or surveillance mammography
is recommended.
Likelihood of malignancy is > 2% to <= 10% likelihood
of malignancy.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category4B | Category 4B (Moderate suspicion) | Category 4B: Moderate suspicion for malignancy.
It warrants radiologic and pathologic correlation
after tissue diagnosis.
Likelihood of malignancy is > 10% to <= 50% likelihood
of
malignancy.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category4C | Category 4C (High suspicion) | Category 4C: High suspicion for
malignancy.
Includes findings that have a high suspicion of malignancy
but that are not highly
suggestive of malignancy (category 5).
Tissue Diagnosis is highly recommended.
Range for likelihood of malignancy is > 50% to <
95% likelihood of malignancy.
It is more likely malignant versus benign.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category5 | Category 5 (Highly Suggestive of Malignancy) | Highly Suggestive of Malignancy.
Almost certainly predictive of breast cancer with
a
value of at least 95%.
Tissue Diagnosis is highly recommended or required.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
| Category6 | Category 6 (Known Biopsy-Proven Malignancy) | Known Biopsy-Proven Malignancy.
Surgical excision when clinically
appropriate.
This category is only used for findings on a mammogram
that have already been shown to be cancer by a previous
biopsy.
Mammograms may be used in this way to see how well
the cancer is responding to treatment.
[Breast Imaging Reporting and Data System—Mammography, Fifth Edition]
Valid for the following modalities: MG US MRI NM. |
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