ICD-10-CM > S00-T88 > T51-T65 > T61 > T61.7 > T61.78 T61.78 Other shellfish poisoning Non-Billable/Non-Specific Codes T61.781Other shellfish poisoning, accidental (unintentional)T61.781A..., initial encounterT61.781D..., subsequent encounterT61.781S..., sequelaT61.782Other shellfish poisoning, intentional self-harmT61.782A..., initial encounterT61.782D..., subsequent encounterT61.782S..., sequelaT61.783Other shellfish poisoning, assaultT61.783A..., initial encounterT61.783D..., subsequent encounterT61.783S..., sequelaT61.784Other shellfish poisoning, undeterminedT61.784A..., initial encounterT61.784D..., subsequent encounterT61.784S..., sequela