T48 — Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system
T48 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T48
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with T48
These codes carry an Excludes1 note pointing at T48. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T48 alone.
- T38Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified
- T44.5Poisoning by, adverse effect of and underdosing of predominantly beta-adrenoreceptor agonists
- T44.6Poisoning by, adverse effect of and underdosing of alpha-adrenoreceptor antagonists
Risk adjustment
T48 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead T48
8 child codes. Green means billable.
- 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]
- T48.2Poisoning by, adverse effect of and underdosing of other and 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
- T48.6Poisoning 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
Questions about T48
- Is T48 a billable ICD-10-CM code?
- No. T48 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T48 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).