T40.901 Poisoning by unspecified psychodysleptics [hallucinogens], accidental (unintentional)

The ICD-10-CM code for Poisoning by unspecified psychodysleptics [hallucinogens], accidental (unintentional) is T40.901 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

19: Injury, poisoning and certain other consequences of external causes (S00-T88)

Section

T36-T50: Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)

Category T40

112 codes (86 billable)

FY2026 Status

Stable since FY2024

Official Coding Guidelines

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

Do not assign injury codes for iatrogenic injuries; code complication

3) Iatrogenic injuries Injury codes from Chapter 19 should not be assigned for injuries that occur during, or as a result of, a medical intervention. Assign the appropriate complication code(s).

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

Cite This Page

Reference T40.901 with the canonical source and edition:

T40.901 — Poisoning by unspecified psychodysleptics [hallucinogens], accidental (unintentional). ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T40.901

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