Current

C12 — Malignant neoplasm of pyriform sinus

Official Notes

Inclusion Terms

Malignant neoplasm of pyriform fossa

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code to identify:

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exposure to environmental tobacco smoke ( Z77.22 )

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

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history of tobacco dependence ( Z87.891 )

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occupational exposure to environmental tobacco smoke ( Z57.31 )

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tobacco dependence ( F17 .-)

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tobacco use ( Z72.0 )

C12 has no child codes in the FY 2027 release -- it is used on its own.

Official notes on these codes cite C12.

FY 2027 effective October 1, 2026 · CDC NCHS and CMS