T50 Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
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The ICD-10-CM code for Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances is T50 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Section
- T36-T50: Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
- Category T50
- 147 codes (114 billable)
- FY2026 Status
- Stable since FY2024
Official Coding Guidelines
Adverse effect: code effect then T36–T50 with 5th/6th char 5(a) Adverse Effect When coding an adverse effect of a drug that has been correctly prescribed and properly administered, assign the appropriate code for the nature of the adverse effect followed by the appropriate code for the adverse effect of the drug (T36-T50). The code for the drug should have a 5th or 6th character “5” (for example T36.0X5-) Examples of the nature of an adverse effect are tachycardia, delirium, gastrointestinal hemorrhaging, vomiting, hypokalemia, hepatitis, renal failure, or respiratory failure.
Poisoning: sequence T36–T50 first; intent; add manifestations(b) Poisoning When coding a poisoning or reaction to the improper use of a medication (e.g., overdose, wrong substance given or taken in error, wrong route of administration), first assign the appropriate code from categories T36-T50. The poisoning codes have an associated intent as their 5th or 6th character (accidental, intentional self-harm, assault and undetermined). If the intent of the poisoning is unknown or unspecified, code the intent as accidental intent. The undetermined intent is only for use if the documentation in the record specifies that the intent cannot be determined. Use additional code(s) for all manifestations of poisonings.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference T50 with the canonical source and edition:
T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T50
Canonical URL: https://icd10codingpro.com/codes/T50