Current
C33 — Malignant neoplasm of trachea
Part of Chapter 2: Neoplasms , block Malignant neoplasms of respiratory and intrathoracic organs (C30-C39) .
Official Notes
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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 )
Child Codes
C33 has no child codes in the FY 2027 release -- it is used on its own.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS