T50.901 — Poisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional)
Is T50.901 billable?
No — T50.901 is a non-billable header code. T50.901 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 T50.901.
Billable codes under this header
- T50.901APoisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), initial encounter
- T50.901DPoisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), subsequent encounter
- T50.901SPoisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), sequela
T50.901 at a glance
| Code | T50.901 |
|---|---|
| Description | Poisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional) |
| 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 T50.901 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 T50.901. T50.901 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T50.901 to fully describe the condition. T50.901 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 T50.901 to fully describe the condition. T50.901 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T50.901, but a patient may have both at the same time. When documentation supports it, T50.901 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T50.901, but a patient may have both at the same time. When documentation supports it, T50.901 and the excluded code may both be reported.
What codes fall under T50.901? (3)
- T50.901APoisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), initial encounter
- T50.901DPoisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), subsequent encounter
- T50.901SPoisoning by unspecified drugs, medicaments and biological substances, accidental (unintentional), sequela
How long has T50.901 existed?
T50.901 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 T50.90 family? (5)
- T50.902Poisoning by unspecified drugs, medicaments and biological substances, intentional self-harmnot billable
- T50.903Poisoning by unspecified drugs, medicaments and biological substances, assaultnot billable
- T50.904Poisoning by unspecified drugs, medicaments and biological substances, undeterminednot billable
- T50.905Adverse effect of unspecified drugs, medicaments and biological substancesnot billable
- T50.906Underdosing of unspecified drugs, medicaments and biological substancesnot billable