T48.904 — Poisoning by unspecified agents primarily acting on the respiratory system, undetermined
Is T48.904 billable?
No — T48.904 is a non-billable header code. T48.904 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 T48.904.
Billable codes under this header
- T48.904APoisoning by unspecified agents primarily acting on the respiratory system, undetermined, initial encounter
- T48.904DPoisoning by unspecified agents primarily acting on the respiratory system, undetermined, subsequent encounter
- T48.904SPoisoning by unspecified agents primarily acting on the respiratory system, undetermined, sequela
T48.904 at a glance
| Code | T48.904 |
|---|---|
| Description | Poisoning by unspecified agents primarily acting on the respiratory system, undetermined |
| 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 T48.904 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 T48.904. T48.904 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T48.904 to fully describe the condition. T48.904 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 T48.904 to fully describe the condition. T48.904 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T48.904, but a patient may have both at the same time. When documentation supports it, T48.904 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T48.904, but a patient may have both at the same time. When documentation supports it, T48.904 and the excluded code may both be reported.
What codes fall under T48.904? (3)
- T48.904APoisoning by unspecified agents primarily acting on the respiratory system, undetermined, initial encounter
- T48.904DPoisoning by unspecified agents primarily acting on the respiratory system, undetermined, subsequent encounter
- T48.904SPoisoning by unspecified agents primarily acting on the respiratory system, undetermined, sequela
How long has T48.904 existed?
T48.904 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 T48.90 family? (5)
- T48.901Poisoning by unspecified agents primarily acting on the respiratory system, accidental (unintentional)not billable
- T48.902Poisoning by unspecified agents primarily acting on the respiratory system, intentional self-harmnot billable
- T48.903Poisoning by unspecified agents primarily acting on the respiratory system, assaultnot billable
- T48.905Adverse effect of unspecified agents primarily acting on the respiratory systemnot billable
- T48.906Underdosing of unspecified agents primarily acting on the respiratory systemnot billable