T56.82UpcomingCategory · further specificity required

Toxic effect of gadolinium

Code-level instructions

Excludes 1

adverse effect of diagnostic agents (T50.8X5-)

Chapters 19 · Inherited instructions

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

T51-T65 · Inherited instructions

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)
to identify any retained foreign body, if applicable (Z18.-)

Excludes 1

contact with and (suspected) exposure to toxic substances (Z77.-)

T56 · Inherited instructions

Use additional code

code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-)

Excludes 1

arsenic and its compounds (T57.0)
manganese and its compounds (T57.2)

A — initial encounter

D — subsequent encounter

S — sequela

Excludes 2 · 2

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

More specific codes

T56.821Toxic effect of gadolinium, accidental (unintentional)T56.822Toxic effect of gadolinium, intentional self-harm T56.823Toxic effect of gadolinium, assault T56.824Toxic effect of gadolinium, undetermined

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.

Official coding guidelines → · CMS ↗

First observed · 2023-10-01

Code history

Latest recorded change · FY2025 · 04-01

ChangedUnchanged

FY2025 · 04-01

Effective from 2025-04-01

Inherited rules changed

Toxic effect of gadolinium

Category — select a more specific code

CDC/NCHS · FY2025 · 04-01

All editions (7)

All editions	Effective from	Code history
FY2024	2023-10-01	Added
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	Inherited rules changed
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

Excludes 1

adverse effect of diagnostic agents (T50.8X5-)

Inherited instructions

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

Note

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

T51-T65 · Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Excludes 1

contact with and (suspected) exposure to toxic substances (Z77.-)

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)
to identify any retained foreign body, if applicable (Z18.-)

Note

When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.

T56 · Toxic effect of metals

Includes

toxic effects of fumes and vapors of metals
toxic effects of metals from all sources, except medicinal substances

Excludes 1

arsenic and its compounds (T57.0)
manganese and its compounds (T57.2)

Use additional code

code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-)

Seventh character

The appropriate 7th character is to be added to each code from category T56

A — initial encounter

D — subsequent encounter

S — sequela

More specific codes

T56.821Toxic effect of gadolinium, accidental (unintentional)Category · further specificity required T56.822Toxic effect of gadolinium, intentional self-harmCategory · further specificity required T56.823Toxic effect of gadolinium, assaultCategory · further specificity required T56.824Toxic effect of gadolinium, undeterminedCategory · further specificity required

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
T56.81	Toxic effect of thallium	Category · further specificity required
T56.89	Toxic effects of other metals	Category · further specificity required

Official titles and instructions are preserved in their source language. Official sources ↗

References from other codes (1)

R78.72 · Abnormal gadolinium level in blood

Excludes 1 · toxic effect of gadolinium (T56.82-)

T56.82UpcomingCategory · further specificity required

Toxic effect of gadolinium

Code-level instructions

Excludes 1

adverse effect of diagnostic agents (T50.8X5-)

Chapters 19 · Inherited instructions

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

T51-T65 · Inherited instructions

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)
to identify any retained foreign body, if applicable (Z18.-)

Excludes 1

contact with and (suspected) exposure to toxic substances (Z77.-)

T56 · Inherited instructions

Use additional code

code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-)

Excludes 1

arsenic and its compounds (T57.0)
manganese and its compounds (T57.2)

A — initial encounter

D — subsequent encounter

S — sequela

Excludes 2 · 2

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

More specific codes

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Official coding guidelines → · CMS ↗

First observed · 2023-10-01

Code history

Latest recorded change · FY2025 · 04-01

ChangedUnchanged

FY2025 · 04-01

Effective from 2025-04-01

Inherited rules changed

Toxic effect of gadolinium

Category — select a more specific code

CDC/NCHS · FY2025 · 04-01

All editions (7)

All editions	Effective from	Code history
FY2024	2023-10-01	Added
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	Inherited rules changed
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

Excludes 1

adverse effect of diagnostic agents (T50.8X5-)

Inherited instructions

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

Note

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

T51-T65 · Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Excludes 1

contact with and (suspected) exposure to toxic substances (Z77.-)

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)
to identify any retained foreign body, if applicable (Z18.-)

Note

When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.

T56 · Toxic effect of metals

Includes

toxic effects of fumes and vapors of metals
toxic effects of metals from all sources, except medicinal substances

Excludes 1

arsenic and its compounds (T57.0)
manganese and its compounds (T57.2)

Use additional code

code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-)

Seventh character

The appropriate 7th character is to be added to each code from category T56

A — initial encounter

D — subsequent encounter

S — sequela

More specific codes

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
T56.81	Toxic effect of thallium	Category · further specificity required
T56.89	Toxic effects of other metals	Category · further specificity required

Official titles and instructions are preserved in their source language. Official sources ↗

References from other codes (1)

R78.72 · Abnormal gadolinium level in blood

Excludes 1 · toxic effect of gadolinium (T56.82-)