Category: C12 - Malignant neoplasm of pyriform sinus

 Chapter Notes

 C12

Malignant neoplasm of pyriform sinus

Malignant neoplasm of pyriform fossa

Use additional code to identify:

exposure to environmental tobacco smoke (Z77.22)

exposure to tobacco smoke in the perinatal period (P96.81)

history of tobacco dependence (Z87.891)

occupational exposure to environmental tobacco smoke (Z57.31)

tobacco dependence (F17.-)

tobacco use (Z72.0)