T56.81

Toxic effect of thallium

Requires 7th character

T56.81 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Includes (from T56)

  • toxic effects of fumes and vapors of metals
  • toxic effects of metals from all sources, except medicinal substances
  • 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
  • Note: 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.
  • 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.

Excludes1

Not coded here — never report together with this code.

  • contact with and (suspected) exposure to toxic substances (Z77.-) (from T56)
  • arsenic and its compounds (T57.0) (from T56)
  • manganese and its compounds (T57.2) (from T56)

Excludes2

Not included here — may be reported together when both conditions exist.

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from T56)
  • code(s): (from T56)
  • for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) (from T56)
  • personal history of foreign body fully removed (Z87.821) (from T56)
  • to identify any retained foreign body, if applicable (Z18.-) (from T56)
  • code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-) (from T56)

7th character

This code requires a 7th character (defined at T56). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Parent code

  • T56.8Toxic effects of other metalsNeeds 7th char

More specific codes T56.81

  • T56.811Toxic effect of thallium, accidental (unintentional)Needs 7th char
  • T56.812Toxic effect of thallium, intentional self-harmNeeds 7th char
  • T56.813Toxic effect of thallium, assaultNeeds 7th char
  • T56.814Toxic effect of thallium, undeterminedNeeds 7th char

Related codes

  • T56.82Toxic effect of gadoliniumNeeds 7th char
  • T56.89Toxic effects of other metalsNeeds 7th char

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