MCMCB Pro
T88.53XA

T88.53XAUnintended awareness under general anesthesia during procedure, initial encounter

Billable / specific codeICD-10-CM

T88.53XA is a billable, specific ICD-10-CM code for unintended awareness under general anesthesia during procedure, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category T88

A
initial encounter
D
subsequent encounter
S
sequela

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • personal history of unintended awareness under general anesthesia (Z92.84)

Risk adjustment

T88.53XA does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Related codes at this level

Codes that share T88.53. If T88.53XA is not quite right, the correct code is usually one of these.

Questions about T88.53XA

Is T88.53XA a billable ICD-10-CM code?
Yes. T88.53XA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T88.53XA sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Complications of surgical and medical care, not elsewhere classified (T80-T88).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.