Icd 10 cm code for frontal sinusitis July 8, 2019 16 32 64 128 Icd 10 cm code for acute frontal sinusitis Icd 10 cm code for chronic frontal sinusitis Icd 10 cm code for acute recurrent frontal sinusitis Icd 10 cm code for acute non recurrent frontal sinusitis Icd 10 code for left maxillary sinusitis Icd 10 code for sinusitis unspecified