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T62.93XD vs T64

T62.93XD (Toxic effect of unspecified noxious substance eaten as food, assault, subsequent encounter) compared with T64 (Toxic effect of aflatoxin and other mycotoxin food contaminants), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Relationship

Conflict

Excludes1 conflict

T62.93XD
Toxic effect of unspecified noxious substance eaten as food, assault, subsequent encounter
↔
T64
Toxic effect of aflatoxin and other mycotoxin food contaminants

Not coded here — these two are mutually exclusive.

“toxic effect of aflatoxin and other mycotoxins (T64)”

An Excludes1 note means the two conditions cannot occur together, so the pair should not be reported for the same encounter. The sole exception is when the conditions are documented as unrelated to each other.

Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a

Can these codes be reported together?

No — do not report together. T62.93XD carries an Excludes1 note covering T64: “toxic effect of aflatoxin and other mycotoxins (T64)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

T62.93XDToxic effect of unspecified noxious substance eaten as food, assault, subsequent encounterT64Toxic effect of aflatoxin and other mycotoxin food contaminants
Billing statusBillableNon-billable header

Report instead: T64.01XA, T64.01XD, T64.01XS, T64.02XA, T64.02XD

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 unspecified noxious substance eaten as food, assault, subsequent encounter is a billable ICD-10-CM diagnosis code (T62.93D).Toxic effect of aflatoxin and other mycotoxin food contaminants is a non-billable ICD-10-CM category code (T64).
7th characterThe appropriate 7th character is to be added to each code from category T62The appropriate 7th character is to be added to each code from category T64
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)
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources