ICD-10-CM > S00-T88 > T36-T50 > T45 > T45.6 > T45.60 > T45.606 T45.606 Underdosing of unspecified fibrinolysis-affecting drugs Non-Billable/Non-Specific Codes T45.606A..., initial encounterT45.606D..., subsequent encounterT45.606S..., sequela