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T41.3X1 vs T41.3X3

T41.3X1 (Poisoning by local anesthetics, accidental (unintentional)) compared with T41.3X3 (Poisoning by local anesthetics, assault), from the official CMS tabular data. T41.3X1 and T41.3X3 code the same substance (Amethocaine) with a different intent.

Can these codes be reported together?

Same substance, different intent. T41.3X1 and T41.3X3 code the same substance (Amethocaine) with a different circumstance of exposure.

From the CMS Table of Drugs and Chemicals: accidental poisoning, intentional self-harm, assault, undetermined intent, adverse effect and underdosing are mutually exclusive columns — only one of them applies to a given encounter.

Side by side

T41.3X1Poisoning by local anesthetics, accidental (unintentional)T41.3X3Poisoning by local anesthetics, assault
Billing statusNon-billable headerNon-billable header
ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionPoisoning by local anesthetics, accidental (unintentional) is a non-billable ICD-10-CM category code (T41.3X1).Poisoning by local anesthetics, assault is a non-billable ICD-10-CM category code (T41.3X3).
7th characterThe appropriate 7th character is to be added to each code from category T41The appropriate 7th character is to be added to each code from category T41
Includes
adverse effect of correct substance properly administered
poisoning by overdose of substance
poisoning by wrong substance given or taken in error
underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed
adverse effect of correct substance properly administered
poisoning by overdose of substance
poisoning by wrong substance given or taken in error
underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed
Use additional code
code(s) to specify:
manifestations of poisoning
underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
code(s) to specify:
manifestations of poisoning
underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
Code first
, for adverse effects, the nature of the adverse effect, such as:
adverse effect NOS (T88.7)
, for adverse effects, the nature of the adverse effect, such as:
adverse effect NOS (T88.7)

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources