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ICD-10-CM · FY 2026 APRIL UPDATE

T44.8X

Poisoning by, adverse effect of and underdosing of centrally-acting and adrenergic- neuron-blocking 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
T44.8X1Poisoning by centrally-acting and adrenergic-neuron-blocking agents, accidental (unintentional)Category
T44.8X1APoisoning by centrally-acting and adrenergic-neuron-blocking agents, accidental (unintentional), initial encounterBillable
T44.8X1DPoisoning by centrally-acting and adrenergic-neuron-blocking agents, accidental (unintentional), subsequent encounterBillable
T44.8X1SPoisoning by centrally-acting and adrenergic-neuron-blocking agents, accidental (unintentional), sequelaBillable
T44.8X2Poisoning by centrally-acting and adrenergic-neuron-blocking agents, intentional self-harmCategory
T44.8X2APoisoning by centrally-acting and adrenergic-neuron-blocking agents, intentional self-harm, initial encounterBillable
T44.8X2DPoisoning by centrally-acting and adrenergic-neuron-blocking agents, intentional self-harm, subsequent encounterBillable
T44.8X2SPoisoning by centrally-acting and adrenergic-neuron-blocking agents, intentional self-harm, sequelaBillable
T44.8X3Poisoning by centrally-acting and adrenergic-neuron-blocking agents, assaultCategory
T44.8X3APoisoning by centrally-acting and adrenergic-neuron-blocking agents, assault, initial encounterBillable
T44.8X3DPoisoning by centrally-acting and adrenergic-neuron-blocking agents, assault, subsequent encounterBillable
T44.8X3SPoisoning by centrally-acting and adrenergic-neuron-blocking agents, assault, sequelaBillable
T44.8X4Poisoning by centrally-acting and adrenergic-neuron-blocking agents, undeterminedCategory
T44.8X4APoisoning by centrally-acting and adrenergic-neuron-blocking agents, undetermined, initial encounterBillable
T44.8X4DPoisoning by centrally-acting and adrenergic-neuron-blocking agents, undetermined, subsequent encounterBillable
T44.8X4SPoisoning by centrally-acting and adrenergic-neuron-blocking agents, undetermined, sequelaBillable
T44.8X5Adverse effect of centrally-acting and adrenergic-neuron-blocking agentsCategory
T44.8X5AAdverse effect of centrally-acting and adrenergic-neuron-blocking agents, initial encounterBillable
T44.8X5DAdverse effect of centrally-acting and adrenergic-neuron-blocking agents, subsequent encounterBillable
T44.8X5SAdverse effect of centrally-acting and adrenergic-neuron-blocking agents, sequelaBillable
T44.8X6Underdosing of centrally-acting and adrenergic-neuron-blocking agentsCategory
T44.8X6AUnderdosing of centrally-acting and adrenergic-neuron-blocking agents, initial encounterBillable
T44.8X6DUnderdosing of centrally-acting and adrenergic-neuron-blocking agents, subsequent encounterBillable
T44.8X6SUnderdosing of centrally-acting and adrenergic-neuron-blocking 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.