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.
T52 · Toxic effect of organic solvents
Excludes 1
halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)
Seventh character
The appropriate 7th character is to be added to each code from category T52
