C12 - Malignant neoplasm of pyriform sinus
InclusionTerm:
-Malignant neoplasm of pyriform fossa
Use Additional Code:
-code to identify:
-exposure to environmental tobacco smoke Z77.22)
-exposure to tobacco smoke in the perinatal period P96.81)
-history of tobacco use Z87.891)
-occupational exposure to environmental tobacco smoke Z57.31)
-tobacco dependence (F17.-)
-tobacco use Z72.0)