T48.203D — Poisoning by unspecified drugs acting on muscles, assault, subsequent encounter
Is T48.203D billable?
Yes, but T48.203D is an unspecified code. T48.203D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T48.203D 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 T48.203D — the more specific alternatives are listed below.
More specific alternatives
- T48.0X1DPoisoning by oxytocic drugs, accidental (unintentional), subsequent encounter
- T48.1X1DPoisoning by skeletal muscle relaxants [neuromuscular blocking agents], accidental (unintentional), subsequent encounter
- T48.3X1DPoisoning by antitussives, accidental (unintentional), subsequent encounter
- T48.4X1DPoisoning by expectorants, accidental (unintentional), subsequent encounter
- T48.5X1DPoisoning by other anti-common-cold drugs, accidental (unintentional), subsequent encounter
T48.203D at a glance
| Code | T48.203D |
|---|---|
| Description | Poisoning by unspecified drugs acting on muscles, assault, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in T48.203D?
In T48.203D, the 7th character D means subsequent encounter. The 7th character is required for T48.203D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T48.203D group to?
T48.203D sits in MDC 23 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.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T48.203D 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 T48.203D. T48.203D describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T48.203D to fully describe the condition. T48.203D 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 T48.203D to fully describe the condition. T48.203D is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T48.203D, but a patient may have both at the same time. When documentation supports it, T48.203D and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T48.203D, but a patient may have both at the same time. When documentation supports it, T48.203D and the excluded code may both be reported.
How long has T48.203D existed?
T48.203D 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.