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

ICD-10-CM Diagnosis Code (2025)

Official Description for T41

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

Coding Notes & Guidelines for T41

Excludes1: Not Coded Here
  • 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-)
Excludes1: Not Coded Here

oxygen (T41.5-)

Excludes2: Not Included Here

poisoning by cocaine used as a central nervous system stimulant (T40.5X1-T40.5X4)

Inclusion Terms

Poisoning by inhaled anesthetics NOS

Inclusion Terms

Poisoning by, adverse effect of and underdosing of thiobarbiturates

Inclusion Terms

Poisoning by intravenous anesthetics NOS

Inclusion Terms

Poisoning by general anesthetics NOS

Inclusion Terms

Poisoning by other general anesthetics NOS

Inclusion Terms

Cocaine (topical)

Inclusion Terms

Poisoning by local anesthetics NOS

Inclusion Terms

Poisoning by anesthetic NOS

Inclusion Terms

Poisoning by therapeutic gases NOS

7th Character Guidance

The appropriate 7th character is to be added to each code from category T41

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for T41):

T41.0 - Poisoning by, adverse effect of and underdosing of inhaled anesthetics T41.0X - Poisoning by, adverse effect of and underdosing of inhaled anesthetics T41.0X1 - Poisoning by inhaled anesthetics, accidental (unintentional) T41.0X2 - Poisoning by inhaled anesthetics, intentional self-harm T41.0X3 - Poisoning by inhaled anesthetics, assault T41.0X4 - Poisoning by inhaled anesthetics, undetermined T41.0X5 - Adverse effect of inhaled anesthetics T41.0X6 - Underdosing of inhaled anesthetics T41.1 - Poisoning by, adverse effect of and underdosing of intravenous anesthetics T41.1X - Poisoning by, adverse effect of and underdosing of intravenous anesthetics T41.1X1 - Poisoning by intravenous anesthetics, accidental (unintentional) T41.1X2 - Poisoning by intravenous anesthetics, intentional self-harm T41.1X3 - Poisoning by intravenous anesthetics, assault T41.1X4 - Poisoning by intravenous anesthetics, undetermined T41.1X5 - Adverse effect of intravenous anesthetics T41.1X6 - Underdosing of intravenous anesthetics T41.2 - Poisoning by, adverse effect of and underdosing of other and unspecified general anesthetics T41.20 - Poisoning by, adverse effect of and underdosing of unspecified general anesthetics T41.201 - Poisoning by unspecified general anesthetics, accidental (unintentional) T41.202 - Poisoning by unspecified general anesthetics, intentional self-harm T41.203 - Poisoning by unspecified general anesthetics, assault T41.204 - Poisoning by unspecified general anesthetics, undetermined T41.205 - Adverse effect of unspecified general anesthetics T41.206 - Underdosing of unspecified general anesthetics T41.29 - Poisoning by, adverse effect of and underdosing of other general anesthetics T41.291 - Poisoning by other general anesthetics, accidental (unintentional) T41.292 - Poisoning by other general anesthetics, intentional self-harm T41.293 - Poisoning by other general anesthetics, assault T41.294 - Poisoning by other general anesthetics, undetermined T41.295 - Adverse effect of other general anesthetics T41.296 - Underdosing of other general anesthetics T41.3 - Poisoning by, adverse effect of and underdosing of local anesthetics T41.3X - Poisoning by, adverse effect of and underdosing of local anesthetics T41.3X1 - Poisoning by local anesthetics, accidental (unintentional) T41.3X2 - Poisoning by local anesthetics, intentional self-harm T41.3X3 - Poisoning by local anesthetics, assault T41.3X4 - Poisoning by local anesthetics, undetermined T41.3X5 - Adverse effect of local anesthetics T41.3X6 - Underdosing of local anesthetics T41.4 - Poisoning by, adverse effect of and underdosing of unspecified anesthetic T41.41 - Poisoning by unspecified anesthetic, accidental (unintentional) T41.42 - Poisoning by unspecified anesthetic, intentional self-harm T41.43 - Poisoning by unspecified anesthetic, assault T41.44 - Poisoning by unspecified anesthetic, undetermined T41.45 - Adverse effect of unspecified anesthetic T41.46 - Underdosing of unspecified anesthetics T41.5 - Poisoning by, adverse effect of and underdosing of therapeutic gases T41.5X - Poisoning by, adverse effect of and underdosing of therapeutic gases T41.5X1 - Poisoning by therapeutic gases, accidental (unintentional) T41.5X2 - Poisoning by therapeutic gases, intentional self-harm T41.5X3 - Poisoning by therapeutic gases, assault T41.5X4 - Poisoning by therapeutic gases, undetermined T41.5X5 - Adverse effect of therapeutic gases T41.5X6 - Underdosing of therapeutic gases

About ICD-10-CM Code T41 (Poisoning by)

ICD-10-CM code T41 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM T41 became effective on October 1, 2024.

This page provides detailed information about T41 - Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Poisoning by related to adverse effect of and underdosing of anesthetics and therapeutic gases.