Billable / Specific Code
ICD-10-CM T59.5X4 is the diagnosis code for Toxic effect of fluorine gas and hydrogen fluoride, undetermined. This code falls under the section "Toxic effects of substances chiefly nonmedicinal as to source" 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 T59.5X4 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, T59.5X4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
T59.5X4 is the ICD-10-CM diagnosis code for "Toxic effect of fluorine gas and hydrogen fluoride, undetermined". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T59.5X4 is T59.5X ("Toxic effect of fluorine gas and hydrogen fluoride"). T59.5X4 provides a more specific classification within this category.
T59.5X4 is located in Section T51-T65 — "Toxic effects of substances chiefly nonmedicinal as to source" within Chapter 19 of the ICD-10-CM Tabular List.
Use T59.5X4 when the patients documented diagnosis matches "Toxic effect of fluorine gas and hydrogen fluoride, undetermined" 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 Toxic effect of fluorine gas and hydrogen fluoride, undetermined is T59.5X4.
Yes, T59.5X4 can be used as a primary diagnosis code since it is billable and specific.
T59.5X4 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T59.5X4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.