ICD-10-CM › S00-T88 › T51-T65 › T59.82 Toxic effects of hexamethylene diisocyanate › T59.821

T59.821

Toxic effect of hexamethylene diisocyanate, accidental (unintentional)

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2027 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • T59.821A Toxic effect of hexamethylene diisocyanate, accidental (unintentional), initial encounter
  • T59.821D Toxic effect of hexamethylene diisocyanate, accidental (unintentional), subsequent encounter
  • T59.821S Toxic effect of hexamethylene diisocyanate, accidental (unintentional), sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2027 to now.

  1. FY2027 Added to the code set Toxic effect of hexamethylene diisocyanate, accidental (unintentional)

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from T59 Toxic effect of other gases, fumes and vapors

Seventh character required

  • The appropriate 7th character is to be added to each code from category T59

Excludes1 - never coded here

  • chlorofluorocarbons (T53.5)

Includes

  • aerosol propellants

Inherited from the T51-T65 section Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Excludes1 - never coded here

  • 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.

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
T59.822 Toxic effect of hexamethylene diisocyanate, intentional self-harm Not billable
T59.823 Toxic effect of hexamethylene diisocyanate, assault Not billable
T59.824 Toxic effect of hexamethylene diisocyanate, undetermined Not billable