ICD-10-CM code · FY2027
T59.0 Toxic effect of nitrogen oxides
Header codeNot billable: use one of the 12 billable codes below
About T59.0
- Code
- T59.0
- Billable
- No, header
- Short description
- Toxic effect of nitrogen oxides
- Category
- T59 Toxic effect of other gases, fumes and vapors
- Block
- T51-T65 Toxic effects of substances chiefly nonmedicinal as to source
- Chapter
- 19 Injury, poisoning and certain other consequences of external causes
- Code set
- FY2027, October 1, 2026 to September 30, 2027
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Coding notes for T59.0
No notes of its own; the notes below apply from the codes above it.
7th character Required: add one of these as the 7th character, with X as a placeholder to fill six characters.
| Character | Meaning |
|---|---|
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
Also applies, from T59 Toxic effect of other gases, fumes and vapors
Includes Conditions this code covers.
- aerosol propellants
Excludes1 Not coded here: never report these together with this code (use the code given instead).
- chlorofluorocarbons (T53.5)
7th character
- The appropriate 7th character is to be added to each code from category T59
Block T51-T65 notes (apply to every code in it)
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 these together with this code (use the code given instead).
- contact with and (suspected) exposure to toxic substances (Z77.-)
Use additional code Add a second code for the detail named here.
Chapter 19 notes (apply to every code in it)
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.
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
Use additional code Add a second code for the detail named here.
- code to identify any retained foreign body, if applicable (Z18.-)
Codes under T59.0 17
- T59.0X Toxic effect of nitrogen oxidesHeader
- T59.0X1 Toxic effect of nitrogen oxides, accidental (unintentional)Header
- T59.0X1A Toxic effect of nitrogen oxides, accidental (unintentional), initial encounterBillable
- T59.0X1D Toxic effect of nitrogen oxides, accidental (unintentional), subsequent encounterBillable
- T59.0X1S Toxic effect of nitrogen oxides, accidental (unintentional), sequelaBillable
- T59.0X2 Toxic effect of nitrogen oxides, intentional self-harmHeader
- T59.0X2A Toxic effect of nitrogen oxides, intentional self-harm, initial encounterBillable
- T59.0X2D Toxic effect of nitrogen oxides, intentional self-harm, subsequent encounterBillable
- T59.0X2S Toxic effect of nitrogen oxides, intentional self-harm, sequelaBillable
- T59.0X3 Toxic effect of nitrogen oxides, assaultHeader
- T59.0X3A Toxic effect of nitrogen oxides, assault, initial encounterBillable
- T59.0X3D Toxic effect of nitrogen oxides, assault, subsequent encounterBillable
- T59.0X3S Toxic effect of nitrogen oxides, assault, sequelaBillable
- T59.0X4 Toxic effect of nitrogen oxides, undeterminedHeader
- T59.0X4A Toxic effect of nitrogen oxides, undetermined, initial encounterBillable
- T59.0X4D Toxic effect of nitrogen oxides, undetermined, subsequent encounterBillable
- T59.0X4S Toxic effect of nitrogen oxides, undetermined, sequelaBillable
Related codes in T59
- T59.1 Toxic effect of sulfur dioxideHeader
- T59.2 Toxic effect of formaldehydeHeader
- T59.3 Toxic effect of lacrimogenic gasHeader
- T59.4 Toxic effect of chlorine gasHeader
- T59.5 Toxic effect of fluorine gas and hydrogen fluorideHeader
- T59.6 Toxic effect of hydrogen sulfideHeader
- T59.7 Toxic effect of carbon dioxideHeader
- T59.8 Toxic effect of other specified gases, fumes and vaporsHeader
- T59.9 Toxic effect of unspecified gases, fumes and vaporsHeader
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