Non-Billable / Non-Specific Code
ICD-10-CM T38 is the diagnosis code for Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified. 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.
The following conditions should never be coded at the same time as T38. They are mutually exclusive:
Understanding where T38 sits in the ICD-10-CM classification helps ensure proper coding:
No, T38 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
T38 is the ICD-10-CM diagnosis code for "Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
T38 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.
T38 has 10 sub-code(s) that provide more specific detail: T38.0, T38.1, T38.2, T38.3, T38.4 and more.
Use T38 when the patients documented diagnosis matches "Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified" 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 hormones and their synthetic substitutes and antagonists, not elsewhere classified is T38.
No, T38 is non-billable. Use a more specific sub-code for primary diagnosis billing.
T38 is in Chapter 19 of the ICD-10-CM Tabular List.
Type 1 Excludes for T38 include: mineralocorticoids and their antagonists (T50.0-); oxytocic hormones (T48.0-); parathyroid hormones and derivatives (T50.9-).
Yes, T38 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.