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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