Mucous retention cyst icd 10 code July 8, 2019 16 32 64 128 Icd 10 code for mucous retention cyst lower lip Icd 10 code for mucous retention cyst in the right maxillary sinus Icd 10 code for mucous retention cyst of maxillary sinus Icd 10 code for mucous retention cyst in the left maxillary sinus Retention cyst icd 10