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