Icd 10 cm code for chronic ethmoidal sinusitis July 8, 2019 16 32 64 128 Icd 10 ethmoid sinusitis Acute ethmoid sinusitis icd 10 Icd 10 code for left maxillary sinusitis Icd 10 code for ethmoid sinus mucosal thickening Icd 10 code for bilateral sinusitis