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ICD-10-CM · FY 2026 APRIL UPDATE

T21.6

Corrosion of second degree of trunk

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
T21.60Corrosion of second degree of trunk, unspecified siteCategory
T21.60XACorrosion of second degree of trunk, unspecified site, initial encounterBillable
T21.60XDCorrosion of second degree of trunk, unspecified site, subsequent encounterBillable
T21.60XSCorrosion of second degree of trunk, unspecified site, sequelaBillable
T21.61Corrosion of second degree of chest wallCategory
T21.61XACorrosion of second degree of chest wall, initial encounterBillable
T21.61XDCorrosion of second degree of chest wall, subsequent encounterBillable
T21.61XSCorrosion of second degree of chest wall, sequelaBillable
T21.62Corrosion of second degree of abdominal wallCategory
T21.62XACorrosion of second degree of abdominal wall, initial encounterBillable
T21.62XDCorrosion of second degree of abdominal wall, subsequent encounterBillable
T21.62XSCorrosion of second degree of abdominal wall, sequelaBillable
T21.63Corrosion of second degree of upper backCategory
T21.63XACorrosion of second degree of upper back, initial encounterBillable
T21.63XDCorrosion of second degree of upper back, subsequent encounterBillable
T21.63XSCorrosion of second degree of upper back, sequelaBillable
T21.64Corrosion of second degree of lower backCategory
T21.64XACorrosion of second degree of lower back, initial encounterBillable
T21.64XDCorrosion of second degree of lower back, subsequent encounterBillable
T21.64XSCorrosion of second degree of lower back, sequelaBillable
T21.65Corrosion of second degree of buttockCategory
T21.65XACorrosion of second degree of buttock, initial encounterBillable
T21.65XDCorrosion of second degree of buttock, subsequent encounterBillable
T21.65XSCorrosion of second degree of buttock, sequelaBillable
T21.66Corrosion of second degree of male genital regionCategory
T21.66XACorrosion of second degree of male genital region, initial encounterBillable
T21.66XDCorrosion of second degree of male genital region, subsequent encounterBillable
T21.66XSCorrosion of second degree of male genital region, sequelaBillable
T21.67Corrosion of second degree of female genital regionCategory
T21.67XACorrosion of second degree of female genital region, initial encounterBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

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ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.