T80.5

Header — not billable

Anaphylactic reaction due to serum

The ICD-10 code for anaphylactic reaction due to serum is T80.5.

T80.5 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.

Clinical notes

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

ABO incompatibility reaction due to transfusion of blood or blood products (T80.3-)
allergic reaction or shock NOS (T78.2)
anaphylactic reaction or shock NOS (T78.2)
anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)
other serum reaction (T80.6-)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

Allergic shock due to serum
Anaphylactic shock due to serum
Anaphylactoid reaction due to serum
Anaphylaxis due to serum

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
•Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

T80.5

Clinical notes

Excludes1 (not coded here)

Also known as

Documentation support

Child codes under T80.5

Related codes in this category