Acute frontal sinusitis icd 10 code July 8, 2019 16 32 64 128 Acute frontal sinusitis icd 10 cm code Acute recurrent frontal sinusitis icd 10 code Acute non recurrent frontal sinusitis icd 10 code Icd 10 code for acute frontal sinusitis unspecified Acute frontal sinusitis icd 10 Acute sinus icd 10