T88.53Unintended awareness under general anesthesia during procedure

T88.53 is the ICD-10-CM diagnosis code for unintended awareness under general anesthesia during procedure. It belongs to category T88 (other complications of surgical and medical care, not elsewhere classified), block T80-T88 (complications of surgical and medical care, not elsewhere classified) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within T88.5 (other complications of anesthesia), T88.53 is specifically for unintended awareness under general anesthesia during procedure. Related codes cover hypothermia following anesthesia (T88.51), failed moderate sedation during procedure (T88.52) and other complications of anesthesia (T88.59).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

The conditions in its Excludes2 note aren't part of T88.53, but may be coded alongside it if the patient has both: personal history of unintended awareness under general anesthesia (Z92.84).

It was added in FY2017, effective October 1, 2016.