Is T80 a billable ICD-10-CM code?

No. T80 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T80 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).

T80

T80 — Complications following infusion, transfusion and therapeutic injection

Non-billable headerICD-10-CM

T80 is a non-billable header ICD-10-CM code for complications following infusion, transfusion and therapeutic injection. 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 T80

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.

bone marrow transplant rejection (T86.01)
febrile nonhemolytic transfusion reaction (R50.84)
fluid overload due to transfusion (E87.71)
posttransfusion purpura (D69.51)
transfusion associated circulatory overload (TACO) (E87.71)
transfusion (red blood cell) associated hemochromatosis (E83.111)
transfusion related acute lung injury (TRALI) (J95.84)

Includes

Conditions this code covers.

complications following perfusion

Other codes that can never be billed with T80

These codes carry an Excludes1 note pointing at T80. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T80 alone.

L50Urticaria
L95Vasculitis limited to skin, not elsewhere classified
R57Shock, not elsewhere classified
T78.2Anaphylactic shock, unspecified
T78.2XXAAnaphylactic shock, unspecified, initial encounter
T78.2XXDAnaphylactic shock, unspecified, subsequent encounter
T78.2XXSAnaphylactic shock, unspecified, sequela
T78.3Angioneurotic edema

Risk adjustment

T80 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 to one of these instead T80

10 child codes. Green means billable.

Questions about T80

Is T80 a billable ICD-10-CM code?: No. T80 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T80 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).