C31Non-billable (header)
Malignant neoplasm of accessory sinuses
Code Hierarchy
┌2Neoplasms (C00-D49)├C30-C39Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)├C31Malignant neoplasm of accessory sinuses
└C31Malignant neoplasm of accessory sinuses
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