ICD-10-CM > S00-T88 > T80-T88 > T88 > T88.5 T88.5 Other complications of anesthesia Non-Billable/Non-Specific Use Additional code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5) Codes T88.51Hypothermia following anesthesiaT88.51XA..., initial encounterT88.51XD..., subsequent encounterT88.51XS..., sequelaT88.52Failed moderate sedation during procedureT88.52XA..., initial encounterT88.52XD..., subsequent encounterT88.52XS..., sequelaT88.53Unintended awareness under general anesthesia during procedureT88.53XA..., initial encounterT88.53XD..., subsequent encounterT88.53XS..., sequelaT88.59Other complications of anesthesiaT88.59XA..., initial encounterT88.59XD..., subsequent encounterT88.59XS..., sequela