T61
Non-Billable

Toxic effect of noxious substances eaten as seafood

Non-Billable / Non-Specific Code

What is Toxic effect of noxious substances eaten as seafood?

ICD-10-CM T61 is the diagnosis code for Toxic effect of noxious substances eaten as seafood. This code falls under the section "Toxic effects of substances chiefly nonmedicinal as to source" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1

Coding Guidelines for T61

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as T61. They are mutually exclusive:

  • 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-)

ICD-10-CM Code Hierarchy

Understanding where T61 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 5 entries
T61.0Ciguatera fish poisoningNon-BillableT61.01Ciguatera fish poisoning, accidental (unintentional)BillableT61.02Ciguatera fish poisoning, intentional self-harmBillableT61.03Ciguatera fish poisoning, assaultBillableT61.04Ciguatera fish poisoning, undeterminedBillableT61.1Scombroid fish poisoningNon-BillableT61.11Scombroid fish poisoning, accidental (unintentional)BillableT61.12Scombroid fish poisoning, intentional self-harmBillableT61.13Scombroid fish poisoning, assaultBillableT61.14Scombroid fish poisoning, undeterminedBillableT61.7Other fish and shellfish poisoningNon-BillableT61.77Other fish poisoningNon-BillableT61.771Other fish poisoning, accidental (unintentional)BillableT61.772Other fish poisoning, intentional self-harmBillableT61.773Other fish poisoning, assaultBillableT61.774Other fish poisoning, undeterminedBillableT61.78Other shellfish poisoningNon-BillableT61.781Other shellfish poisoning, accidental (unintentional)BillableT61.782Other shellfish poisoning, intentional self-harmBillableT61.783Other shellfish poisoning, assaultBillableT61.784Other shellfish poisoning, undeterminedBillableT61.8Toxic effect of other seafoodNon-BillableT61.8XToxic effect of other seafoodNon-BillableT61.8X1Toxic effect of other seafood, accidental (unintentional)BillableT61.8X2Toxic effect of other seafood, intentional self-harmBillableT61.8X3Toxic effect of other seafood, assaultBillableT61.8X4Toxic effect of other seafood, undeterminedBillableT61.9Toxic effect of unspecified seafoodNon-BillableT61.91Toxic effect of unspecified seafood, accidental (unintentional)BillableT61.92Toxic effect of unspecified seafood, intentional self-harmBillableT61.93Toxic effect of unspecified seafood, assaultBillableT61.94Toxic effect of unspecified seafood, undeterminedBillable
Related Codes

Frequently Asked Questions

Is T61 a billable ICD-10-CM code?

No, T61 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does T61 mean?

T61 is the ICD-10-CM diagnosis code for "Toxic effect of noxious substances eaten as seafood". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is T61 in?

T61 is located in Section T51-T65 — "Toxic effects of substances chiefly nonmedicinal as to source" within Chapter 19 of the ICD-10-CM Tabular List.

What are the sub-codes of T61?

T61 has 5 sub-code(s) that provide more specific detail: T61.0, T61.1, T61.7, T61.8, T61.9.

When should I use T61?

Use T61 when the patients documented diagnosis matches "Toxic effect of noxious substances eaten as seafood" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Toxic effect of noxious substances eaten as seafood?

The ICD-10-CM code for Toxic effect of noxious substances eaten as seafood is T61.

Can T61 be used for primary diagnosis?

No, T61 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is T61 in?

T61 is in Chapter 19 of the ICD-10-CM Tabular List.

What conditions are excluded from T61?

Type 1 Excludes for T61 include: allergic reaction to food, such as:; anaphylactic reaction or shock due to adverse food reaction (T78.0-); bacterial foodborne intoxications (A05.-) and more.

Is T61 valid for 2026?

Yes, T61 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousT60.94Toxic effect of unspecified pesticide, undeterminedNext →T61.0Ciguatera fish poisoning
Code Details
T61
Toxic effect of noxious substances eaten as seafood
Non-Billable / Non-Specific Code
19 — Injury, poisoning and certain other consequences of external causes (S00-T88)
T51-T65 — Toxic effects of substances chiefly nonmedicinal as to source
2026 ICD-10-CM