Non-Billable / Non-Specific Code
ICD-10-CM T50 is the diagnosis code for Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances. This code falls under the section "Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where T50 sits in the ICD-10-CM classification helps ensure proper coding:
No, T50 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
T50 is the ICD-10-CM diagnosis code for "Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
T50 is located in Section T36-T50 — "Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances" within Chapter 19 of the ICD-10-CM Tabular List.
T50 has 13 sub-code(s) that provide more specific detail: T50.0, T50.1, T50.2, T50.3, T50.4 and more.
Use T50 when the patients documented diagnosis matches "Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
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.
No, T50 is non-billable. Use a more specific sub-code for primary diagnosis billing.
T50 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T50 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.