Toxic effect of hydrogen cyanide, undetermined
Requires 7th character
T57.3X4 requires a 7th character to be reported. Choose a complete code below.
Inclusion terms
Includes (from T57)
- 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.
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 T57)
- code(s): (from T57)
- for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) (from T57)
- personal history of foreign body fully removed (Z87.821) (from T57)
- to identify any retained foreign body, if applicable (Z18.-) (from T57)
7th character
This code requires a 7th character (defined at T57). Use the placeholder "X" for missing positions.
| Character | Meaning |
|---|---|
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
Parent code
- T57.3XToxic effect of hydrogen cyanideNeeds 7th char