prophylactic mastectomy?

If the doctor documents
'carcinoma of left breast' and
'bilateral radical mastectomy' and
'right breast removed as prophylactic measure',
how should this be coded?

174.4, 85.45, V50.41 (unilateral and prophylactic) or
174.4, 85.46, V50.41 (bilateral and prophylactic) or
174.4, 85.46 (bilateral)

Thank you....