Icd 9 code for obstructive sleep apnea July 8, 2019 16 32 64 128 Icd 9 code for obstructive sleep apnea-hypopnea syndrome Icd 9 code for severe obstructive sleep apnea Icd 9 obstructive sleep apnea Icd 9 sleep apnea Icd 9 code for sleep apnea Obstructive sleep apnoea icd 10