T45.AX2 — Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm
Is T45.AX2 billable?
No — T45.AX2 is a non-billable header code. T45.AX2 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath T45.AX2.
Billable codes under this header
- T45.AX2APoisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, initial encounter
- T45.AX2DPoisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, subsequent encounter
- T45.AX2SPoisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, sequela
T45.AX2 at a glance
| Code | T45.AX2 |
|---|---|
| Description | Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T45.AX2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Excludes1 — never code together — inherited from T45.A
The conditions below can never be reported together with T45.AX2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drug (T45.1)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T45.AX2. T45.AX2 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T45.AX2 to fully describe the condition. T45.AX2 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T36-T50
Report an additional code alongside T45.AX2 to fully describe the condition. T45.AX2 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T45.AX2, but a patient may have both at the same time. When documentation supports it, T45.AX2 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T45.AX2, but a patient may have both at the same time. When documentation supports it, T45.AX2 and the excluded code may both be reported.
What codes fall under T45.AX2? (3)
- T45.AX2APoisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, initial encounter
- T45.AX2DPoisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, subsequent encounter
- T45.AX2SPoisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, sequela
How long has T45.AX2 existed?
T45.AX2 first appears in FY2025.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the T45.AX family? (5)
- T45.AX1Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional)not billable
- T45.AX3Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assaultnot billable
- T45.AX4Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undeterminednot billable
- T45.AX5Adverse effect of immune checkpoint inhibitors and immunostimulant drugsnot billable
- T45.AX6Underdosing of immune checkpoint inhibitors and immunostimulant drugsnot billable