T44.904D — Poisoning by unspecified drugs primarily affecting the autonomic nervous system, undetermined, subsequent encounter
Is T44.904D billable?
Yes, but T44.904D is an unspecified code. T44.904D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T44.904D 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 T44.904D — the more specific alternatives are listed below.
More specific alternatives
- T44.0X1DPoisoning by anticholinesterase agents, accidental (unintentional), subsequent encounter
- T44.1X1DPoisoning by other parasympathomimetics [cholinergics], accidental (unintentional), subsequent encounter
- T44.2X1DPoisoning by ganglionic blocking drugs, accidental (unintentional), subsequent encounter
- T44.3X1DPoisoning by other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, accidental (unintentional), subsequent encounter
- T44.4X1DPoisoning by predominantly alpha-adrenoreceptor agonists, accidental (unintentional), subsequent encounter
- T44.5X1DPoisoning by predominantly beta-adrenoreceptor agonists, accidental (unintentional), subsequent encounter
- T44.6X1DPoisoning by alpha-adrenoreceptor antagonists, accidental (unintentional), subsequent encounter
- T44.7X1DPoisoning by beta-adrenoreceptor antagonists, accidental (unintentional), subsequent encounter
- T44.8X1DPoisoning by centrally-acting and adrenergic-neuron-blocking agents, accidental (unintentional), subsequent encounter
T44.904D at a glance
| Code | T44.904D |
|---|---|
| Description | Poisoning by unspecified drugs primarily affecting the autonomic nervous system, undetermined, 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 T44.904D?
In T44.904D, the 7th character D means subsequent encounter. The 7th character is required for T44.904D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T44.904D group to?
T44.904D 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 T44.904D 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 T44.904D. T44.904D describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T44.904D to fully describe the condition. T44.904D 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 T44.904D to fully describe the condition. T44.904D is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T44.904D, but a patient may have both at the same time. When documentation supports it, T44.904D and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T44.904D, but a patient may have both at the same time. When documentation supports it, T44.904D and the excluded code may both be reported.
How long has T44.904D existed?
T44.904D 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.