Malignant neoplasm of accessory sinuses (C31)

ICD-10 Index
- Neoplasms (C00–D48)
  - Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)
    - - C31 - Malignant neoplasm of accessory sinuses NON-BILLABLE CODE
      - C31.0 - Malignant neoplasm of maxillary sinus BILLABLE CODE
      - C31.1 - Malignant neoplasm of ethmoidal sinus BILLABLE CODE
      - C31.2 - Malignant neoplasm of frontal sinus BILLABLE CODE
      - C31.3 - Malignant neoplasm of sphenoid sinus BILLABLE CODE
      - C31.8 - Malignant neoplasm of overlapping sites of accessory sinuses BILLABLE CODE
      - C31.9 - Malignant neoplasm of accessory sinus, unspecified BILLABLE CODE