T48.5Poisoning by, adverse effect of and underdosing of other anti-common-cold drugs

T48.5 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of other anti-common-cold drugs. It belongs to category T48 (poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system), 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 1 subcodes must be used instead.

Within T48, choose T48.5 (other anti-common-cold drugs) only when documentation doesn't support a more specific option: oxytocic drugs (T48.0), skeletal muscle relaxants [neuromuscular blocking agents] (T48.1), other and unspecified drugs acting on muscles (T48.2), antitussives (T48.3), expectorants (T48.4), antiasthmatics, not elsewhere classified (T48.6) and other and unspecified agents primarily acting on the respiratory system (T48.9).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

The conditions in its Excludes2 note aren't part of T48.5, but may be coded alongside it if the patient has both: 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-) and poisoning by, adverse effect of and underdosing of salicylates (T39.0-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.