T48.991D
✓ BillablePoisoning by other agents primarily acting on the respiratory system, accidental (unintentional), subsequent encounter
Injury, poisoning and certain other consequences of external causes (S00-T88)
Clinical Description
ICD-10-CM code T48.991D represents poisoning by other agents primarily acting on the respiratory system, accidental (unintentional), subsequent encounter. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code T48.991D?
ICD-10-CM code T48.991D is "Poisoning by other agents primarily acting on the respiratory system, accidental (unintentional), subsequent encounter". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T48.991D a billable ICD-10 code?
Yes, T48.991D is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Related Codes in T48.991
Other codes in the same category that may be relevant for differential coding:
🧪 Validate Combinations
Add T48.991D to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)