T52.1X1S — Toxic effect of benzene, accidental (unintentional), sequela
Is T52.1X1S billable?
Yes — T52.1X1S is billable for FY2027. T52.1X1S is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T52.1X1S may be submitted for encounters from October 1, 2026 through September 30, 2027.
T52.1X1S at a glance
| Code | T52.1X1S |
|---|---|
| Description | Toxic effect of benzene, 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 T52.1X1S?
In T52.1X1S, the 7th character S means sequela. The 7th character is required for T52.1X1S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T52.1X1S group to?
T52.1X1S 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
Inclusion terms
Alternative wording in documentation that is classified to T52.1X1S.
- Toxic effects of benzene NOS
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T52.1X1S on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- contact with and (suspected) exposure to toxic substances (Z77.-)
Excludes1 — never code together — inherited from T52
The conditions below can never be reported together with T52.1X1S on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)
Excludes1 — never code together — inherited from T52.1
The conditions below can never be reported together with T52.1X1S on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 19
Report an additional code alongside T52.1X1S to fully describe the condition. T52.1X1S is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T51-T65
Report an additional code alongside T52.1X1S to fully describe the condition. T52.1X1S is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T52.1X1S, but a patient may have both at the same time. When documentation supports it, T52.1X1S and the excluded code may both be reported.
How long has T52.1X1S existed?
T52.1X1S 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.