ICD-10-CM 2027 diagnosis code
T48Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system
T48 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.Short description: Agents prim act on smooth and skeletal musc and the resp sys
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T48
T48 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system. It belongs to block T36-T50 (poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: T48.0 (drugs), T48.1 (agents]), T48.2 (muscles), T48.3 (antitussives), T48.4 (expectorants), T48.5 (drugs), T48.6 (classified) and T48.9 (system).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under T48
- T48.0Poisoning by, adverse effect of and underdosing of oxytocic drugs
- T48.1Poisoning by, adverse effect of and underdosing of skeletal muscle relaxants [neuromuscular blocking agents]
- T48.1XPoisoning by, adverse effect of and underdosing of skeletal muscle relaxants [neuromuscular blocking agents]
- T48.1X1Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], accidental (unintentional)
- T48.1X2Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], intentional self-harm
- T48.1X3Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], assault
- T48.1X4Poisoning by skeletal muscle relaxants [neuromuscular blocking agents], undetermined
- T48.1X5Adverse effect of skeletal muscle relaxants [neuromuscular blocking agents]
- T48.1X6Underdosing of skeletal muscle relaxants [neuromuscular blocking agents]
- T48.1XPoisoning by, adverse effect of and underdosing of skeletal muscle relaxants [neuromuscular blocking agents]
- T48.2Poisoning by, adverse effect of and underdosing of other and unspecified drugs acting on muscles
- T48.20Poisoning by, adverse effect of and underdosing of unspecified drugs acting on muscles
- T48.201Poisoning by unspecified drugs acting on muscles, accidental (unintentional)
- T48.202Poisoning by unspecified drugs acting on muscles, intentional self-harm
- T48.203Poisoning by unspecified drugs acting on muscles, assault
- T48.204Poisoning by unspecified drugs acting on muscles, undetermined
- T48.205Adverse effect of unspecified drugs acting on muscles
- T48.206Underdosing of unspecified drugs acting on muscles
- T48.29Poisoning by, adverse effect of and underdosing of other drugs acting on muscles
- T48.291Poisoning by other drugs acting on muscles, accidental (unintentional)
- T48.292Poisoning by other drugs acting on muscles, intentional self-harm
- T48.293Poisoning by other drugs acting on muscles, assault
- T48.294Poisoning by other drugs acting on muscles, undetermined
- T48.295Adverse effect of other drugs acting on muscles
- T48.296Underdosing of other drugs acting on muscles
- T48.20Poisoning by, adverse effect of and underdosing of unspecified drugs acting on muscles
- T48.3Poisoning by, adverse effect of and underdosing of antitussives
- T48.4Poisoning by, adverse effect of and underdosing of expectorants
- T48.5Poisoning by, adverse effect of and underdosing of other anti-common-cold drugs
- T48.5XPoisoning by, adverse effect of and underdosing of other anti-common-cold drugs
- T48.5X1Poisoning by other anti-common-cold drugs, accidental (unintentional)
- T48.5X2Poisoning by other anti-common-cold drugs, intentional self-harm
- T48.5X3Poisoning by other anti-common-cold drugs, assault
- T48.5X4Poisoning by other anti-common-cold drugs, undetermined
- T48.5X5Adverse effect of other anti-common-cold drugs
- T48.5X6Underdosing of other anti-common-cold drugs
- T48.5XPoisoning by, adverse effect of and underdosing of other anti-common-cold drugs
- T48.6Poisoning by, adverse effect of and underdosing of antiasthmatics, not elsewhere classified
- T48.9Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily acting on the respiratory system
- T48.90Poisoning by, adverse effect of and underdosing of unspecified agents primarily acting on the respiratory system
- T48.901Poisoning by unspecified agents primarily acting on the respiratory system, accidental (unintentional)
- T48.902Poisoning by unspecified agents primarily acting on the respiratory system, intentional self-harm
- T48.903Poisoning by unspecified agents primarily acting on the respiratory system, assault
- T48.904Poisoning by unspecified agents primarily acting on the respiratory system, undetermined
- T48.905Adverse effect of unspecified agents primarily acting on the respiratory system
- T48.906Underdosing of unspecified agents primarily acting on the respiratory system
- T48.99Poisoning by, adverse effect of and underdosing of other agents primarily acting on the respiratory system
- T48.991Poisoning by other agents primarily acting on the respiratory system, accidental (unintentional)
- T48.992Poisoning by other agents primarily acting on the respiratory system, intentional self-harm
- T48.993Poisoning by other agents primarily acting on the respiratory system, assault
- T48.994Poisoning by other agents primarily acting on the respiratory system, undetermined
- T48.995Adverse effect of other agents primarily acting on the respiratory system
- T48.996Underdosing of other agents primarily acting on the respiratory system
- T48.90Poisoning by, adverse effect of and underdosing of unspecified agents primarily acting on the respiratory system
Notes that apply from higher levels
Instructions written at a parent level also apply to T48.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about T48
Is T48 billable?
- No. T48 is a header code. Report one of its more specific subcodes instead.