Icd 10 for fentanyl overdose July 8, 2019 16 32 64 128 Icd 10 cm code for fentanyl overdose Icd 10 code for accidental fentanyl overdose initial encounter Icd 10 code for unintentional fentanyl overdose Icd 10 code for history of fentanyl overdose Fentanyl intoxication icd 10