T80.52

Anaphylactic reaction due to vaccination

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 14 never code together

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

Excludes2

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

Inclusion terms

T80code

Includes

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

Index entries leading here 3

Allergy, allergic (reaction) (to) T78.40
- shock (anaphylactic) T78.2
  - due to
    - immunization T80.52
    - vaccination T80.52
Shock R57.9
- anaphylactic T78.2
  - serum T80.59
    - vaccination T80.52
    - immunization T80.52
  - immunization T80.52
Complication (s) (from) (of)
- vaccination T88.1
  - serum intoxication, sickness, rash, or other serum reaction NEC T80.62
    - anaphylactic shock T80.52
  - anaphylaxis NEC T80.52
  - shock (allergic) (anaphylactic) T80.52

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.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.