Is T88.8 a billable ICD-10-CM code?

No. T88.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T88.8 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).

T88.8

T88.8 — Other specified complications of surgical and medical care, not elsewhere classified

Non-billable headerICD-10-CM

T88.8 is a non-billable header ICD-10-CM code for other specified complications of surgical and medical care, not elsewhere classified. 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 to identify the complication

Excludes2 inherited from the categories above T88.8

Also inherited, and the opposite of Excludes1: these conditions are not part of T88.8, 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 T88.8

These codes carry an Excludes1 note pointing at T88.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T88.8 alone.

T88.7Unspecified adverse effect of drug or medicament
T88.7XXAUnspecified adverse effect of drug or medicament, initial encounter
T88.7XXDUnspecified adverse effect of drug or medicament, subsequent encounter
T88.7XXSUnspecified adverse effect of drug or medicament, sequela

Risk adjustment

T88.8 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 T88.8 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 T88.8.

Paraffinoma
Misadventure›specified NEC
Complication›electroshock therapy›specified NEC
Complication›phototherapy›specified NEC
Effect, adverse›medical care›specified NEC
Misadventure›local applications›specified NEC
Misadventure›medical care›specified NEC

Code history

T88.8 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 T88.8

3 child codes. Green means billable.

Related codes at this level

Codes that share T88. If T88.8 is not quite right, the correct code is usually one of these.

Questions about T88.8

Is T88.8 a billable ICD-10-CM code?: No. T88.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T88.8 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).