T42.71 — Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional)
Is T42.71 billable?
No — T42.71 is a non-billable header code. T42.71 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 T42.71.
Billable codes under this header
- T42.71XAPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), initial encounter
- T42.71XDPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), subsequent encounter
- T42.71XSPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), sequela
T42.71 at a glance
| Code | T42.71 |
|---|---|
| Description | Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional) |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Inclusion terms
Alternative wording in documentation that is classified to T42.71.
- Poisoning by antiepileptic and sedative-hypnotic drugs NOS
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T42.71 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 T42.71. T42.71 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T42.71 to fully describe the condition. T42.71 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 T42.71 to fully describe the condition. T42.71 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T42.71, but a patient may have both at the same time. When documentation supports it, T42.71 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T42.71, but a patient may have both at the same time. When documentation supports it, T42.71 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T42
The conditions below are not part of T42.71, but a patient may have both at the same time. When documentation supports it, T42.71 and the excluded code may both be reported.
- drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.--F19.-)
What codes fall under T42.71? (3)
- T42.71XAPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), initial encounter
- T42.71XDPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), subsequent encounter
- T42.71XSPoisoning by unspecified antiepileptic and sedative-hypnotic drugs, accidental (unintentional), sequela
How long has T42.71 existed?
T42.71 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 T42.7 family? (5)
- T42.72Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, intentional self-harmnot billable
- T42.73Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, assaultnot billable
- T42.74Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, undeterminednot billable
- T42.75Adverse effect of unspecified antiepileptic and sedative-hypnotic drugsnot billable
- T42.76Underdosing of unspecified antiepileptic and sedative-hypnotic drugsnot billable