ICD-10-CM T48: Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system

ICD-10-CM Diagnosis Code (2025)

Official Description for T48

Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system

Coding Notes & Guidelines for T48

Excludes1: Not Coded Here

poisoning by, adverse effect of and underdosing of estrogens, progestogens and antagonists (T38.4-T38.6)

Excludes1: Not Coded Here
  • poisoning by, adverse effect of and underdosing of beta-adrenoreceptor agonists not used in asthma therapy (T44.5)
  • poisoning by, adverse effect of and underdosing of anterior pituitary [adenohypophyseal] hormones (T38.8)
Excludes2: Not Included Here
  • poisoning by, adverse effect of and underdosing of antipyretics, NEC (T39.9-)
  • poisoning by, adverse effect of and underdosing of non-steroidal antiinflammatory drugs (T39.3-)
  • poisoning by, adverse effect of and underdosing of salicylates (T39.0-)
Inclusion Terms

Poisoning by oxytocic drugs NOS

Inclusion Terms

Poisoning by skeletal muscle relaxants [neuromuscular blocking agents] NOS

Inclusion Terms

Poisoning by unspecified drugs acting on muscles NOS

Inclusion Terms

Poisoning by other drugs acting on muscles NOS

Inclusion Terms

Poisoning by antitussives NOS

Inclusion Terms

Poisoning by expectorants NOS

Inclusion Terms

Poisoning by, adverse effect of and underdosing of decongestants

Inclusion Terms

Poisoning by other anti-common-cold drugs NOS

Inclusion Terms

Poisoning by, adverse effect of and underdosing of beta-adrenoreceptor agonists used in asthma therapy

Inclusion Terms

Poisoning by antiasthmatics NOS

7th Character Guidance

The appropriate 7th character is to be added to each code from category T48

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

Child Codes (More Specific Codes for T48):

T48.0 - Poisoning by, adverse effect of and underdosing of oxytocic drugs T48.0X - Poisoning by, adverse effect of and underdosing of oxytocic drugs T48.0X1 - Poisoning by oxytocic drugs, accidental (unintentional) T48.0X2 - Poisoning by oxytocic drugs, intentional self-harm T48.0X3 - Poisoning by oxytocic drugs, assault T48.0X4 - Poisoning by oxytocic drugs, undetermined T48.0X5 - Adverse effect of oxytocic drugs T48.0X6 - Underdosing of oxytocic drugs T48.1 - Poisoning by, adverse effect of and underdosing of skeletal muscle relaxants [neuromuscular blocking agents] T48.1X - Poisoning by, adverse effect of and underdosing of skeletal muscle relaxants [neuromuscular blocking agents] T48.1X1 - Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], accidental (unintentional) T48.1X2 - Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], intentional self-harm T48.1X3 - Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], assault T48.1X4 - Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], undetermined T48.1X5 - Adverse effect of skeletal muscle relaxants [neuromuscular blocking agents] T48.1X6 - Underdosing of skeletal muscle relaxants [neuromuscular blocking agents] T48.2 - Poisoning by, adverse effect of and underdosing of other and unspecified drugs acting on muscles T48.20 - Poisoning by, adverse effect of and underdosing of unspecified drugs acting on muscles T48.201 - Poisoning by unspecified drugs acting on muscles, accidental (unintentional) T48.202 - Poisoning by unspecified drugs acting on muscles, intentional self-harm T48.203 - Poisoning by unspecified drugs acting on muscles, assault T48.204 - Poisoning by unspecified drugs acting on muscles, undetermined T48.205 - Adverse effect of unspecified drugs acting on muscles T48.206 - Underdosing of unspecified drugs acting on muscles T48.29 - Poisoning by, adverse effect of and underdosing of other drugs acting on muscles T48.291 - Poisoning by other drugs acting on muscles, accidental (unintentional) T48.292 - Poisoning by other drugs acting on muscles, intentional self-harm T48.293 - Poisoning by other drugs acting on muscles, assault T48.294 - Poisoning by other drugs acting on muscles, undetermined T48.295 - Adverse effect of other drugs acting on muscles T48.296 - Underdosing of other drugs acting on muscles T48.3 - Poisoning by, adverse effect of and underdosing of antitussives T48.3X - Poisoning by, adverse effect of and underdosing of antitussives T48.3X1 - Poisoning by antitussives, accidental (unintentional) T48.3X2 - Poisoning by antitussives, intentional self-harm T48.3X3 - Poisoning by antitussives, assault T48.3X4 - Poisoning by antitussives, undetermined T48.3X5 - Adverse effect of antitussives T48.3X6 - Underdosing of antitussives T48.4 - Poisoning by, adverse effect of and underdosing of expectorants T48.4X - Poisoning by, adverse effect of and underdosing of expectorants T48.4X1 - Poisoning by expectorants, accidental (unintentional) T48.4X2 - Poisoning by expectorants, intentional self-harm T48.4X3 - Poisoning by expectorants, assault T48.4X4 - Poisoning by expectorants, undetermined T48.4X5 - Adverse effect of expectorants T48.4X6 - Underdosing of expectorants T48.5 - Poisoning by, adverse effect of and underdosing of other anti-common-cold drugs T48.5X - Poisoning by, adverse effect of and underdosing of other anti-common-cold drugs T48.5X1 - Poisoning by other anti-common-cold drugs, accidental (unintentional) T48.5X2 - Poisoning by other anti-common-cold drugs, intentional self-harm T48.5X3 - Poisoning by other anti-common-cold drugs, assault T48.5X4 - Poisoning by other anti-common-cold drugs, undetermined T48.5X5 - Adverse effect of other anti-common-cold drugs T48.5X6 - Underdosing of other anti-common-cold drugs T48.6 - Poisoning by, adverse effect of and underdosing of antiasthmatics, not elsewhere classified T48.6X - Poisoning by, adverse effect of and underdosing of antiasthmatics T48.6X1 - Poisoning by antiasthmatics, accidental (unintentional) T48.6X2 - Poisoning by antiasthmatics, intentional self-harm T48.6X3 - Poisoning by antiasthmatics, assault T48.6X4 - Poisoning by antiasthmatics, undetermined T48.6X5 - Adverse effect of antiasthmatics T48.6X6 - Underdosing of antiasthmatics T48.9 - Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily acting on the respiratory system T48.90 - Poisoning by, adverse effect of and underdosing of unspecified agents primarily acting on the respiratory system T48.901 - Poisoning by unspecified agents primarily acting on the respiratory system, accidental (unintentional) T48.902 - Poisoning by unspecified agents primarily acting on the respiratory system, intentional self-harm T48.903 - Poisoning by unspecified agents primarily acting on the respiratory system, assault T48.904 - Poisoning by unspecified agents primarily acting on the respiratory system, undetermined T48.905 - Adverse effect of unspecified agents primarily acting on the respiratory system T48.906 - Underdosing of unspecified agents primarily acting on the respiratory system T48.99 - Poisoning by, adverse effect of and underdosing of other agents primarily acting on the respiratory system T48.991 - Poisoning by other agents primarily acting on the respiratory system, accidental (unintentional) T48.992 - Poisoning by other agents primarily acting on the respiratory system, intentional self-harm T48.993 - Poisoning by other agents primarily acting on the respiratory system, assault T48.994 - Poisoning by other agents primarily acting on the respiratory system, undetermined T48.995 - Adverse effect of other agents primarily acting on the respiratory system T48.996 - Underdosing of other agents primarily acting on the respiratory system

About ICD-10-CM Code T48 (Poisoning by)

ICD-10-CM code T48 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 T48 became effective on October 1, 2024.

This page provides detailed information about T48 - Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system. 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 agents primarily acting on smooth and skeletal muscles and the respiratory system.