Icd 10 code for ethmoid sinus mucosal thickening July 8, 2019 16 32 64 128 Icd 10 ethmoid sinusitis Mucosal thickening in the ethmoid sinuses icd 10 Icd 10 code for mucosal thickening of the ethmoid air cells Icd 10 code for mucosal thickening ethmoid