ICD-10-CM > S00-T88 > T36-T50 > T40 > T40.4 > T40.41 > T40.416 T40.416 Underdosing of fentanyl or fentanyl analogs Non-Billable/Non-Specific Codes T40.416A..., initial encounterT40.416D..., subsequent encounterT40.416S..., sequela
ICD-10 Fast ICD-10 Fast