T80.51
Anaphylactic reaction due to administration of blood and blood products
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 14 never code together
T80.5code
Excludes1
- ABO incompatibility reaction due to transfusion of blood or blood products (T80.3-)T80.3-
- allergic reaction or shock NOS (T78.2)T78.2
- anaphylactic reaction or shock NOS (T78.2)T78.2
- anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)T88.6
- other serum reaction (T80.6-)T80.6-
T80code
Excludes2
- bone marrow transplant rejection (T86.01)T86.01
- febrile nonhemolytic transfusion reaction (R50.84)R50.84
- fluid overload due to transfusion (E87.71)E87.71
- posttransfusion purpura (D69.51)D69.51
- transfusion associated circulatory overload (TACO) (E87.71)E87.71
- transfusion (red blood cell) associated hemochromatosis (E83.111)E83.111
- transfusion related acute lung injury (TRALI) (J95.84)J95.84
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 8
T80.5code
Inclusion terms
- Allergic shock due to serum
- Anaphylactic shock due to serum
- Anaphylactoid reaction due to serum
- Anaphylaxis due to serum
T80code
Includes
- complications following perfusion
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 2
Alongside this code 2 same parent — T80.5
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.