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ICD-10-CM 2027

ICD-10 code for smoke inhalation

T59.81

Toxic effect of smoke

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Inhalation › smoke”. Page updated September 29, 2026.

About coding smoke inhalation

The ICD-10-CM code for smoke inhalation is T59.81 (Toxic effect of smoke). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T59.81.

Within T59.8 (toxic effect of other specified gases, fumes and vapors), T59.81 is specifically for toxic effect of smoke. Related codes cover effects of hexamethylene diisocyanate (T59.82) and effect of other specified gases, fumes and vapors (T59.89).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

The conditions in its Excludes2 note aren't part of T59.81, but may be coded alongside it if the patient has both: toxic effect of cigarette (tobacco) smoke (T65.22-).

More specific smoke inhalation codes (official index)

  • with respiratory conditions J70.5 — Respiratory conditions due to smoke inhalation
  • due to chemicals, gases, fumes and vapors J68.9 — Unspecified respiratory condition due to chemicals, gases, fumes and vapors

Common questions about smoke inhalation ICD-10 codes

What is the ICD-10 code for smoke inhalation?

T59.81 — Toxic effect of smoke (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: J70.5, J68.9.

Is T59.81 billable?

No. T59.81 is a header code. Report one of its more specific subcodes instead.