T50.915Adverse effect of multiple unspecified drugs, medicaments and biological substances

T50.915 is the ICD-10-CM diagnosis code for adverse effect of multiple unspecified drugs, medicaments and biological substances. It belongs to category T50 (poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances), 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 3 subcodes must be used instead.

Within T50.91, choose T50.915 (Adverse effect of multiple unspecified drugs, medicaments and biological substances) only when documentation doesn't support a more specific option: poisoning by multiple unspecified drugs, medicaments and biological substances, accidental (unintentional) (T50.911), poisoning by multiple unspecified drugs, medicaments and biological substances, intentional self-harm (T50.912), poisoning by multiple unspecified drugs, medicaments and biological substances, assault (T50.913), poisoning by multiple unspecified drugs, medicaments and biological substances, undetermined (T50.914) and underdosing of multiple unspecified drugs, medicaments and biological substances (T50.916).

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.

It was added in FY2020, effective October 1, 2019.