T44.903 — Poisoning by unspecified drugs primarily affecting the autonomic nervous system, assault
Is T44.903 billable?
No — T44.903 is a non-billable header code. T44.903 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 T44.903.
Billable codes under this header
- T44.903APoisoning by unspecified drugs primarily affecting the autonomic nervous system, assault, initial encounter
- T44.903DPoisoning by unspecified drugs primarily affecting the autonomic nervous system, assault, subsequent encounter
- T44.903SPoisoning by unspecified drugs primarily affecting the autonomic nervous system, assault, sequela
T44.903 at a glance
| Code | T44.903 |
|---|---|
| Description | Poisoning by unspecified drugs primarily affecting the autonomic nervous system, 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 T44.903 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-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T44.903. T44.903 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T44.903 to fully describe the condition. T44.903 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 T44.903 to fully describe the condition. T44.903 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T44.903, but a patient may have both at the same time. When documentation supports it, T44.903 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T44.903, but a patient may have both at the same time. When documentation supports it, T44.903 and the excluded code may both be reported.
What codes fall under T44.903? (3)
- T44.903APoisoning by unspecified drugs primarily affecting the autonomic nervous system, assault, initial encounter
- T44.903DPoisoning by unspecified drugs primarily affecting the autonomic nervous system, assault, subsequent encounter
- T44.903SPoisoning by unspecified drugs primarily affecting the autonomic nervous system, assault, sequela
How long has T44.903 existed?
T44.903 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
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 T44.90 family? (5)
- T44.901Poisoning by unspecified drugs primarily affecting the autonomic nervous system, accidental (unintentional)not billable
- T44.902Poisoning by unspecified drugs primarily affecting the autonomic nervous system, intentional self-harmnot billable
- T44.904Poisoning by unspecified drugs primarily affecting the autonomic nervous system, undeterminednot billable
- T44.905Adverse effect of unspecified drugs primarily affecting the autonomic nervous systemnot billable
- T44.906Underdosing of unspecified drugs primarily affecting the autonomic nervous systemnot billable