ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 2 C00-D49 Neoplasms /
C30-C39 Malignant neoplasms of respiratory and intrathoracic organs /
C31 Malignant neoplasm of accessory sinuses
Billable ICD-10-CM Code C31.1
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C31.1
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Malignant neoplasm of ethmoidal sinus
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