T41.205S — Adverse effect of unspecified general anesthetics, sequela
Is T41.205S billable?
Yes, but T41.205S is an unspecified code. T41.205S is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T41.205S 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 T41.205S — the more specific alternatives are listed below.
More specific alternatives
- T41.0X1SPoisoning by inhaled anesthetics, accidental (unintentional), sequela
- T41.1X1SPoisoning by intravenous anesthetics, accidental (unintentional), sequela
- T41.3X1SPoisoning by local anesthetics, accidental (unintentional), sequela
- T41.5X1SPoisoning by therapeutic gases, accidental (unintentional), sequela
T41.205S at a glance
| Code | T41.205S |
|---|---|
| Description | Adverse effect of unspecified general anesthetics, 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 T41.205S?
In T41.205S, the 7th character S means sequela. The 7th character is required for T41.205S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
What Medicare edits apply to T41.205S?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name T41.205S directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does T41.205S group to?
T41.205S 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 T41.205S 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-)
Excludes1 — never code together — inherited from T41
The conditions below can never be reported together with T41.205S on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T41.205S. T41.205S describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T41.205S to fully describe the condition. T41.205S 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 T41.205S to fully describe the condition. T41.205S is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T41.205S, but a patient may have both at the same time. When documentation supports it, T41.205S and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T41.205S, but a patient may have both at the same time. When documentation supports it, T41.205S and the excluded code may both be reported.
How long has T41.205S existed?
T41.205S 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.