2025 ICD-10-CM Diagnosis Code T45.AX2
Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm
- ICD-10-CM Code:
- T45.AX2
- ICD-10 Code for:
- Poisn by immune chkpt inhibtr/immunostim drugs, self-harm
- Is Billable?
- Not Valid for Submission
- Code Navigator:
T45.AX2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm. The code is not specific and is NOT valid for the year 2025 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.
Specific Coding Applicable to Poisn by immune chkpt inhibtr/immunostim drugs, self-harm
Non-specific codes like T45.AX2 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for poisn by immune chkpt inhibtr/immunostim drugs, self-harm:
Coding Guidelines
When coding a poisoning or reaction to the improper use of a medication (e.g., overdose, wrong substance given or taken in error, wrong route of administration), first assign the appropriate code from categories T36-T50. The poisoning codes have an associated intent as their 5th or 6th character (accidental, intentional self-harm, assault and undetermined. If the intent of the poisoning is unknown or unspecified, code the intent as accidental intent. The undetermined intent is only for use if the documentation in the record specifies that the intent cannot be determined. Use additional code(s) for all manifestations of poisonings.
The appropriate 7th character is to be added to each code from block Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified (T45). Use the following options for the aplicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
New 2025 ICD-10-CM Code
T45.AX2 is new to ICD-10-CM code set for the FY 2025, effective October 1, 2024. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2024. This is a new and revised code for the FY 2025 (October 1, 2024 - September 30, 2025).
Table of Drugs and Chemicals
The code is referenced in the Table of Drugs and Chemicals, this table contains a classification of drugs, industrial solvents, corrosive gases, noxious plants, pesticides, and other toxic agents.
According to ICD-10-CM coding guidelines it is advised to do not code directly from the Table of Drugs and Chemicals, instead always refer back to the Tabular List when doing the initial coding. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. It is important to use as many codes as necessary to specify all reported drugs, medicinal or chemical substances. If the same diagnosis code describes the causative agent for more than one adverse reaction, poisoning, toxic effect or underdosing, utilize the code only once.
| Substance | Poisoning Accidental (unintentional) |
Poisoning Accidental (self-harm) |
Poisoning Assault |
Poisoning Undetermined |
Adverse effect |
Underdosing |
|---|---|---|---|---|---|---|
| Immune | T45.AX1 | T45.AX2 | T45.AX3 | T45.AX4 | T45.AX5 | T45.AX6 |
| Immune »checkpoint inhibitors | T45.AX1 | T45.AX2 | T45.AX3 | T45.AX4 | T45.AX5 | T45.AX6 |
| Immune »globulin | T45.AX1 | T45.AX2 | T45.AX3 | T45.AX4 | T45.AX5 | T45.AX6 |
| Immune »serum globulin | T45.AX1 | T45.AX2 | T45.AX3 | T45.AX4 | T45.AX5 | T45.AX6 |
| Immunostimulant drug | T45.AX1 | T45.AX2 | T45.AX3 | T45.AX4 | T45.AX5 | T45.AX6 |
