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T78.2XXS

✓ Billable

Anaphylactic shock, unspecified, sequela

Injury, poisoning and certain other consequences of external causes (S00-T88)

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❌ Excludes1

inherited from T78.2

Rules from parent category T78.2: Anaphylactic shock, unspecified

  • • anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)
  • • anaphylactic reaction or shock due to adverse food reaction (T78.0-)
  • • anaphylactic reaction or shock due to serum (T80.5-)

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Code Information

CodeT78.2XXS
BillableYes
ParentT78.2
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes13 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)