T48.20
Poisoning by, adverse effect of and underdosing of unspecified drugs acting on muscles
Not billable — category only FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 1 more
specific code sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 2 never code together
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 3
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 1 same parent — T48.2
Subordinate codes 6
T48.201 Poisoning by unsp drugs acting on muscles, accidental T48.202 Poisoning by unsp drugs acting on muscles, self-harm T48.203 Poisoning by unspecified drugs acting on muscles, assault T48.204 Poisoning by unsp drugs acting on muscles, undetermined T48.205 Adverse effect of unspecified drugs acting on muscles T48.206 Underdosing of unspecified drugs acting on muscles
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.