T88.5 — Other complications of anesthesia
T88.5 is a non-billable header ICD-10-CM code for other complications of anesthesia. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T88
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Use additional code
Add a secondary code to capture the detail described below.
- code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5)
Excludes2 inherited from the categories above T88.5
Also inherited, and the opposite of Excludes1: these conditions are not part of T88.5, but a patient can have both, so you may code both.
Written on T88 — Other complications of surgical and medical care, not elsewhere classified
- complication following infusion, transfusion and therapeutic injection (T80.-)
- complication following procedure NEC (T81.-)
- complications of anesthesia in labor and delivery (O74.-)
- complications of anesthesia in pregnancy (O29.-)
- complications of anesthesia in puerperium (O89.-)
- complications of devices, implants and grafts (T82-T85)
- complications of obstetric surgery and procedure (O75.4)
- dermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)
- poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4)
- specified complications classified elsewhere
Other codes that can never be billed with T88.5
These codes carry an Excludes1 note pointing at T88.5. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T88.5 alone.
Risk adjustment
T88.5 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.
Code history
T88.5 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead T88.5
4 child codes. Green means billable.
Related codes at this level
Codes that share T88. If T88.5 is not quite right, the correct code is usually one of these.
- T88.0Infection following immunization
- T88.1Other complications following immunization, not elsewhere classified
- T88.2Shock due to anesthesia
- T88.3Malignant hyperthermia due to anesthesia
- T88.4Failed or difficult intubation
- T88.6Anaphylactic reaction due to adverse effect of correct drug or medicament properly administered
- T88.7Unspecified adverse effect of drug or medicament
- T88.8Other specified complications of surgical and medical care, not elsewhere classified
- T88.9Complication of surgical and medical care, unspecified
Questions about T88.5
- Is T88.5 a billable ICD-10-CM code?
- No. T88.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T88.5 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).