T45.AX3 — Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault
Is T45.AX3 billable?
No — T45.AX3 is a non-billable header code. T45.AX3 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.AX3.
Billable codes under this header
- T45.AX3APoisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, initial encounter
- T45.AX3DPoisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, subsequent encounter
- T45.AX3SPoisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, sequela
T45.AX3 at a glance
| Code | T45.AX3 |
|---|---|
| Description | Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault |
| 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.AX3 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.AX3 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.AX3. T45.AX3 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.AX3 to fully describe the condition. T45.AX3 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.AX3 to fully describe the condition. T45.AX3 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T45.AX3, but a patient may have both at the same time. When documentation supports it, T45.AX3 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T45.AX3, but a patient may have both at the same time. When documentation supports it, T45.AX3 and the excluded code may both be reported.
What codes fall under T45.AX3? (3)
- T45.AX3APoisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, initial encounter
- T45.AX3DPoisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, subsequent encounter
- T45.AX3SPoisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, sequela
How long has T45.AX3 existed?
T45.AX3 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.AX2Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harmnot 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