ICD-10 Code: C31.1 – Malignant neoplasm of ethmoidal sinus

ICD-10 code C31.1 corresponds to Malignant neoplasm of ethmoidal sinus. This code is classified under the chapter C31 Malignant neoplasm of accessory sinuses, which is part of the C00-C96: Malignant neoplasms category.

The parent chapter is Neoplasms.