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T65.3X2A vs T65.3X2D

T65.3X2A (Toxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, initial encounter) compared with T65.3X2D (Toxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, subsequent encounter), from the official CMS tabular data. T65.3X2A and T65.3X2D code the same injury at a different phase of treatment.

Can these codes be reported together?

Same injury, other encounter phase. T65.3X2A and T65.3X2D code the same injury at a different phase of treatment, set by the 7th character.

The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.

Side by side

T65.3X2AToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, initial encounterT65.3X2DToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, subsequent encounter
Billing statusBillableBillable
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)
DefinitionToxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, initial encounter is a billable ICD-10-CM diagnosis code (T65.3X2A).Toxic effect of nitroderivatives and aminoderivatives of benzene and its homologues, intentional self-harm, subsequent encounter is a billable ICD-10-CM diagnosis code (T65.3X2D).
7th characterThe appropriate 7th character is to be added to each code from category T65The appropriate 7th character is to be added to each code from category T65
Use additional code
code(s):
for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
personal history of foreign body fully removed (Z87.821)
code(s):
for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
personal history of foreign body fully removed (Z87.821)

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