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T61.8X1

⚠ Non-billable (Header)

Toxic effect of other seafood, accidental (unintentional)

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

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

T61
  • • allergic reaction to food, such as:
  • • anaphylactic reaction or shock due to adverse food reaction (T78.0-)
  • • bacterial foodborne intoxications (A05.-)
  • • dermatitis (L23.6, L25.4, L27.2)
  • • food protein-induced enterocolitis syndrome (K52.21)
  • • food protein-induced enteropathy (K52.22)
  • • gastroenteritis (noninfective) (K52.29)
  • • toxic effect of aflatoxin and other mycotoxins (T64)
  • • toxic effect of cyanides (T65.0-)
  • • toxic effect of harmful algae bloom (T65.82-)
  • • toxic effect of hydrogen cyanide (T57.3-)
  • • toxic effect of mercury (T56.1-)
  • • toxic effect of red tide (T65.82-)

Child Codes (3)

T61.8X1AToxic effect of other seafood, accidental (unintentional), initial encounterT61.8X1DToxic effect of other seafood, accidental (unintentional), subsequent encounterT61.8X1SToxic effect of other seafood, accidental (unintentional), sequela

Clinical Description

ICD-10-CM code T61.8X1 represents toxic effect of other seafood, accidental (unintentional). This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under T61.8X1. Coders should note that T61.8X1 has 13 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code T61.8X1?

ICD-10-CM code T61.8X1 is "Toxic effect of other seafood, accidental (unintentional)". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T61.8X1 a billable ICD-10 code?

No, T61.8X1 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with T61.8X1?

T61.8X1 has 13 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in T61.8X

Other codes in the same category that may be relevant for differential coding:

T61.8X2Toxic effect of other seafood, intentional self-harmT61.8X3Toxic effect of other seafood, assaultT61.8X4Toxic effect of other seafood, undetermined

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Code Information

CodeT61.8X1
BillableNo — Header code
ParentT61.8X
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes113 rule(s)
Excludes20 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)