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ICD-10-CM · FY 2026 APRIL UPDATE

T50.6

Poisoning by, adverse effect of and underdosing of antidotes and chelating agents

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
T50.6XPoisoning by, adverse effect of and underdosing of antidotes and chelating agentsCategory
T50.6X1Poisoning by antidotes and chelating agents, accidental (unintentional)Category
T50.6X1APoisoning by antidotes and chelating agents, accidental (unintentional), initial encounterBillable
T50.6X1DPoisoning by antidotes and chelating agents, accidental (unintentional), subsequent encounterBillable
T50.6X1SPoisoning by antidotes and chelating agents, accidental (unintentional), sequelaBillable
T50.6X2Poisoning by antidotes and chelating agents, intentional self-harmCategory
T50.6X2APoisoning by antidotes and chelating agents, intentional self-harm, initial encounterBillable
T50.6X2DPoisoning by antidotes and chelating agents, intentional self-harm, subsequent encounterBillable
T50.6X2SPoisoning by antidotes and chelating agents, intentional self-harm, sequelaBillable
T50.6X3Poisoning by antidotes and chelating agents, assaultCategory
T50.6X3APoisoning by antidotes and chelating agents, assault, initial encounterBillable
T50.6X3DPoisoning by antidotes and chelating agents, assault, subsequent encounterBillable
T50.6X3SPoisoning by antidotes and chelating agents, assault, sequelaBillable
T50.6X4Poisoning by antidotes and chelating agents, undeterminedCategory
T50.6X4APoisoning by antidotes and chelating agents, undetermined, initial encounterBillable
T50.6X4DPoisoning by antidotes and chelating agents, undetermined, subsequent encounterBillable
T50.6X4SPoisoning by antidotes and chelating agents, undetermined, sequelaBillable
T50.6X5Adverse effect of antidotes and chelating agentsCategory
T50.6X5AAdverse effect of antidotes and chelating agents, initial encounterBillable
T50.6X5DAdverse effect of antidotes and chelating agents, subsequent encounterBillable
T50.6X5SAdverse effect of antidotes and chelating agents, sequelaBillable
T50.6X6Underdosing of antidotes and chelating agentsCategory
T50.6X6AUnderdosing of antidotes and chelating agents, initial encounterBillable
T50.6X6DUnderdosing of antidotes and chelating agents, subsequent encounterBillable
T50.6X6SUnderdosing of antidotes and chelating agents, 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.