U.S. ICD-10-CM · FY 2027

T41 ICD-10-CM Code: Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

T41

Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where T41 sits

  1. 1

    Chapter 19

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

  2. 2

    Section

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

  3. 3

    Category T41

    Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases

  4. 4

    Code T41

    Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases

More specific choices

Codes under T41

T41 is a non-billable category. Choose the child code that best matches the documented diagnosis.

T41.0

Poisoning by, adverse effect of and underdosing of inhaled anesthetics

T41.1

Poisoning by, adverse effect of and underdosing of intravenous anesthetics

T41.2

Poisoning by, adverse effect of and underdosing of other and unspecified general anesthetics

T41.3

Poisoning by, adverse effect of and underdosing of local anesthetics

T41.4

Poisoning by, adverse effect of and underdosing of unspecified anesthetic

T41.5

Poisoning by, adverse effect of and underdosing of therapeutic gases

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for T41.

Code first

No “code first” instruction is listed for T41.

Use additional code

No “use additional code” instruction is listed for T41.

Excludes1

Conditions that should not be reported together with this code.

  • benzodiazepines (T42.4-)
  • cocaine (T40.5-)
  • complications of anesthesia during pregnancy (O29.-)
  • complications of anesthesia during labor and delivery (O74.-)
  • complications of anesthesia during the puerperium (O89.-)
  • opioids (T40.0-T40.2-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for T41.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code T41 mean?

T41 is the FY 2027 U.S. ICD-10-CM code for “Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases.”

Is T41 a billable or specific ICD-10-CM code?

No. T41 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is T41 located in ICD-10-CM?

T41 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) (T36–T50), under category T41, Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases.

What coding notes are listed for T41?

No inclusion terms are listed for T41 in this reference record. No code-first instruction is listed. Excludes1 notes: benzodiazepines (T42.4-); cocaine (T40.5-); complications of anesthesia during pregnancy (O29.-); complications of anesthesia during labor and delivery (O74.-); complications of anesthesia during the puerperium (O89.-); opioids (T40.0-T40.2-). No Excludes2 note is listed.

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