FY2027 ICD-10-CM reference
T32: Corrosions classified according to extent of body surface involved
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Corrosions classified according to extent of body surface involved. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
CMS-HCC V28
Not applicable to this nonbillable heading
CMS-HCC V24
Not applicable to this nonbillable heading
ESRD
Not applicable to this nonbillable heading
PACE
Not applicable to this nonbillable heading
RxHCC
Not applicable to this nonbillable heading
HHS-HCC
Not applicable to this nonbillable heading
More specific FY2027 codes
- T32.0: Corrosions involving less than 10% of body surfaceBillable code
- T32.1: Corrosions involving 10-19% of body surfaceNonbillable heading
- T32.2: Corrosions involving 20-29% of body surfaceNonbillable heading
- T32.3: Corrosions involving 30-39% of body surfaceNonbillable heading
- T32.4: Corrosions involving 40-49% of body surfaceNonbillable heading
- T32.5: Corrosions involving 50-59% of body surfaceNonbillable heading
- T32.6: Corrosions involving 60-69% of body surfaceNonbillable heading
- T32.7: Corrosions involving 70-79% of body surfaceNonbillable heading
- T32.8: Corrosions involving 80-89% of body surfaceNonbillable heading
- T32.9: Corrosions involving 90% or more of body surfaceNonbillable heading
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Instructional note
Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
Source: S00-T88 (chapter, inherited).
Instructional note
code to identify any retained foreign body, if applicable (Z18.-)
Source: S00-T88 (chapter, inherited).
Excludes2
birth trauma (P10-P15)
Source: S00-T88 (chapter, inherited).
Excludes2
obstetric trauma (O70-O71)
Source: S00-T88 (chapter, inherited).
Instructional note
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Source: S00-T88 (chapter, inherited).
Instructional note
This category is to be used as the primary code only when the site of the corrosion is unspecified. It may be used as a supplementary code with categories T20-T25 when the site is specified.
Source: T32 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does T32 mean in FY2027?
The official ICD-10-CM descriptor is Corrosions classified according to extent of body surface involved. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is T32 billable in FY2027?
The FY2027 order file marks T32 as a nonbillable heading. Select a complete billable child code.
Does T32 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition