T32.20 — Corrosions involving 20-29% of body surface with 0% to 9% third degree corrosion
Is T32.20 billable?
Yes — T32.20 is billable for FY2027. T32.20 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T32.20 may be submitted for encounters from October 1, 2026 through September 30, 2027.
T32.20 at a glance
| Code | T32.20 |
|---|---|
| Description | Corrosions involving 20-29% of body surface with 0% to 9% third degree corrosion |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does T32.20 group to?
T32.20 sits in MDC 22 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 935Non-Extensive Burnsmedical
As a secondary diagnosis, T32.20 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG. It also carries Hospital-Acquired Condition category 05.
How is T32.20 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to T32.20. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Corrosion › extent › 20-29 percent (injury) (acid) (caustic) (chemical) (lime) (external) (internal)
- Corrosion › unspecified site with extent of body surface involved specified › 20-29 percent (injury) (acid) (caustic) (chemical) (lime) (external) (internal)
Use additional code — inherited from Chapter 19
Report an additional code alongside T32.20 to fully describe the condition. T32.20 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T32.20, but a patient may have both at the same time. When documentation supports it, T32.20 and the excluded code may both be reported.
How long has T32.20 existed?
T32.20 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.