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T78.05

T78.05: Anaphylactic reaction due to tree nuts and seeds

Non-billable headerICD-10-CM

T78.05 is a non-billable header ICD-10-CM code for anaphylactic reaction due to tree nuts and seeds. 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 T78

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.

  • anaphylactic reaction due to peanuts (T78.01)

Excludes2 inherited from the categories above T78.05

Not part of this code, but both may be coded when both are present.

Written on T78: Adverse effects, not elsewhere classified

  • complications of surgical and medical care NEC (T80-T88)

Other codes that can never be billed with T78.05

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • T75Other and unspecified effects of other external causes

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Shock›anaphylactic›due to food›nuts
  • Shock›anaphylactic›due to food›seeds
  • Shock›anaphylactic›due to food›nuts›multiple types

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T78.05

3 child codes. Green means billable.

Other codes under T78.0

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.