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ICD-10-CM 2027

ICD-10 code for urticaria serum

T80.69

Other serum reaction due to other serum

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Serum › urticaria”. Page updated September 29, 2026.

About coding urticaria serum

The ICD-10-CM code for urticaria serum is T80.69 (Other serum reaction due to other serum).

Within T80.6, choose T80.69 (other serum) only when documentation doesn't support a more specific option: administration of blood and blood products (T80.61) and vaccination (T80.62).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about urticaria serum ICD-10 codes

What is the ICD-10 code for urticaria serum?

T80.69 — Other serum reaction due to other serum (a header code; report a more specific subcode).

Is T80.69 billable?

No. T80.69 is a header code. Report one of its more specific subcodes instead.