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ICD-10-CM · FY 2026 APRIL UPDATE

T61

Toxic effect of noxious substances eaten as seafood

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
T61.0Ciguatera fish poisoningCategory
T61.01Ciguatera fish poisoning, accidental (unintentional)Category
T61.01XACiguatera fish poisoning, accidental (unintentional), initial encounterBillable
T61.01XDCiguatera fish poisoning, accidental (unintentional), subsequent encounterBillable
T61.01XSCiguatera fish poisoning, accidental (unintentional), sequelaBillable
T61.02Ciguatera fish poisoning, intentional self-harmCategory
T61.02XACiguatera fish poisoning, intentional self-harm, initial encounterBillable
T61.02XDCiguatera fish poisoning, intentional self-harm, subsequent encounterBillable
T61.02XSCiguatera fish poisoning, intentional self-harm, sequelaBillable
T61.03Ciguatera fish poisoning, assaultCategory
T61.03XACiguatera fish poisoning, assault, initial encounterBillable
T61.03XDCiguatera fish poisoning, assault, subsequent encounterBillable
T61.03XSCiguatera fish poisoning, assault, sequelaBillable
T61.04Ciguatera fish poisoning, undeterminedCategory
T61.04XACiguatera fish poisoning, undetermined, initial encounterBillable
T61.04XDCiguatera fish poisoning, undetermined, subsequent encounterBillable
T61.04XSCiguatera fish poisoning, undetermined, sequelaBillable
T61.1Scombroid fish poisoningCategory
T61.11Scombroid fish poisoning, accidental (unintentional)Category
T61.11XAScombroid fish poisoning, accidental (unintentional), initial encounterBillable
T61.11XDScombroid fish poisoning, accidental (unintentional), subsequent encounterBillable
T61.11XSScombroid fish poisoning, accidental (unintentional), sequelaBillable
T61.12Scombroid fish poisoning, intentional self-harmCategory
T61.12XAScombroid fish poisoning, intentional self-harm, initial encounterBillable
T61.12XDScombroid fish poisoning, intentional self-harm, subsequent encounterBillable
T61.12XSScombroid fish poisoning, intentional self-harm, sequelaBillable
T61.13Scombroid fish poisoning, assaultCategory
T61.13XAScombroid fish poisoning, assault, initial encounterBillable
T61.13XDScombroid fish poisoning, assault, subsequent encounterBillable
T61.13XSScombroid fish poisoning, assault, sequelaBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.