R159Level 3oncoplastic breast conserving lumpectomy or partial mastectomy for malignancy
INTEGUMENTARY SYSTEM SURGICAL PROCEDURES · OPERATIONS OF THE BREAST
$701.15What this reference tells you
R159 identifies the Ontario insured service described as “Level 3oncoplastic breast conserving lumpectomy or partial mastectomy for malignancy.” The listed fee and rules are reference data; the clinical record must support the service actually performed.
Loaded billing requirements
- 5.R159 is only eligible for payment when a.resected breast volume exceeds 25% of ipsilateral breast parenchyma, and b.the operative report documents the use of reduction mammoplasty techniques sufficient to achieve cosmesis.
Before using this code
Confirm the current Ministry publication, the patient and provider context, the date of service, and documentation supporting the claim. A searchable reference does not establish eligibility or guarantee payment.