T48.901S — Poisoning by unspecified agents primarily acting on the respiratory system, accidental (unintentional), sequela
Is T48.901S billable?
Yes, but T48.901S is an unspecified code. T48.901S is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T48.901S is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting T48.901S — the more specific alternatives are listed below.
More specific alternatives
- T48.0X1SPoisoning by oxytocic drugs, accidental (unintentional), sequela
- T48.1X1SPoisoning by skeletal muscle relaxants [neuromuscular blocking agents], accidental (unintentional), sequela
- T48.3X1SPoisoning by antitussives, accidental (unintentional), sequela
- T48.4X1SPoisoning by expectorants, accidental (unintentional), sequela
- T48.5X1SPoisoning by other anti-common-cold drugs, accidental (unintentional), sequela
T48.901S at a glance
| Code | T48.901S |
|---|---|
| Description | Poisoning by unspecified agents primarily acting on the respiratory system, accidental (unintentional), sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in T48.901S?
In T48.901S, the 7th character S means sequela. The 7th character is required for T48.901S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T48.901S group to?
T48.901S sits in MDC 21 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 922Other Injury, Poisoning and Toxic Effect Diagnoses with MCCmedical
- 923Other Injury, Poisoning and Toxic Effect Diagnoses without MCCmedical
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T48.901S 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 T48.901S. T48.901S describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T48.901S to fully describe the condition. T48.901S 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 T48.901S to fully describe the condition. T48.901S is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T48.901S, but a patient may have both at the same time. When documentation supports it, T48.901S and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T48.901S, but a patient may have both at the same time. When documentation supports it, T48.901S and the excluded code may both be reported.
How long has T48.901S existed?
T48.901S 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.