Billable / Specific Code
ICD-10-CM T48.905 is the diagnosis code for Adverse effect of unspecified agents primarily acting on the respiratory system. 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 billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 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 T48.905 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, T48.905 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
T48.905 is the ICD-10-CM diagnosis code for "Adverse effect of unspecified agents primarily acting on the respiratory system". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T48.905 is T48.90 ("Poisoning by, adverse effect of and underdosing of unspecified agents primarily acting on the respiratory system"). T48.905 provides a more specific classification within this category.
T48.905 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.
T48.905 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use T48.905 when the patients documented diagnosis matches "Adverse effect of unspecified agents primarily acting on the respiratory system" 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 Adverse effect of unspecified agents primarily acting on the respiratory system is T48.905.
Yes, T48.905 can be used as a primary diagnosis code since it is billable and specific.
T48.905 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T48.905 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.