T88.59 — Other complications of anesthesia
T88.59 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
Excludes2 inherited from the categories above T88.59
Also inherited, and the opposite of Excludes1: these conditions are not part of T88.59, 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
Risk adjustment
T88.59 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.
How T88.59 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to T88.59.
- Anesthesia, anesthetic›complication or reaction NEC
- Complication›anesthesia, anesthetic
- Effect, adverse›anesthesia
- Headache›spinal and epidural anesthesia - induced
- Reaction›toxic, to local anesthesia
- Effect, adverse›anesthesia›specified NEC
- Effect, adverse›anesthesia›spinal and epidural
- Inhalation›stomach contents or secretions›due to anesthesia or other sedation(general) (local)
- Anoxia›cerebral›complicating›anesthesia or other sedation(general) (local)
- Effect, adverse›anesthesia›spinal and epidural›headache
Code history
T88.59 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 T88.59
3 child codes. Green means billable.
Related codes at this level
Codes that share T88.5. If T88.59 is not quite right, the correct code is usually one of these.
Questions about T88.59
- Is T88.59 a billable ICD-10-CM code?
- No. T88.59 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T88.59 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).