C31Non-billable (header)
Malignant neoplasm of accessory sinuses
Related Codes· Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)
C30Malignant neoplasm of nasal cavity and middle earC32Malignant neoplasm of larynxC33Malignant neoplasm of tracheaC34Malignant neoplasm of bronchus and lungC37Malignant neoplasm of thymusC38Malignant neoplasm of heart, mediastinum and pleuraC39Malignant neoplasm of other and ill-defined sites in the res…
Sub-codes of C31(6)
C31 is a non-billable header. Select a sub-code to bill.
C31.0Malignant neoplasm of maxillary sinus✓ BillableC31.1Malignant neoplasm of ethmoidal sinus✓ BillableC31.2Malignant neoplasm of frontal sinus✓ BillableC31.3Malignant neoplasm of sphenoid sinus✓ BillableC31.8Malignant neoplasm of overlapping sites of accessory sinuses✓ BillableC31.9Malignant neoplasm of accessory sinus, unspecified✓ Billable
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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