Is T49.5X4 a billable code?
No. T49.5X4 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
T49.5X4: Poisoning by ophthalmological drugs and preparations, undetermined
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
T49.5X4 groups related diagnoses under poisoning by ophthalmological drugs and preparations, undetermined. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under T49.5X4
- T49.5X4APoisoning by ophthalmological drugs and preparations, undetermined, initial encounter
- T49.5X4DPoisoning by ophthalmological drugs and preparations, undetermined, subsequent encounter
- T49.5X4SPoisoning by ophthalmological drugs and preparations, undetermined, sequela
Other codes in T49.5X Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations
- T49.5X1Poisoning by ophthalmological drugs and preparations, accidental (unintentional)header
- T49.5X2Poisoning by ophthalmological drugs and preparations, intentional self-harmheader
- T49.5X3Poisoning by ophthalmological drugs and preparations, assaultheader
- T49.5X5Adverse effect of ophthalmological drugs and preparationsheader
- T49.5X6Underdosing of ophthalmological drugs and preparationsheader
T49.5X4 questions
What does T49.5X4 mean?
T49.5X4 is the ICD-10-CM code for Poisoning by ophthalmological drugs and preparations, undetermined. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.