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ICD-10-CM · FY 2026 APRIL UPDATE

T23.6

Corrosion of second degree of wrist and hand

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
T23.60Corrosion of second degree of hand, unspecified siteCategory
T23.601Corrosion of second degree of right hand, unspecified siteCategory
T23.601ACorrosion of second degree of right hand, unspecified site, initial encounterBillable
T23.601DCorrosion of second degree of right hand, unspecified site, subsequent encounterBillable
T23.601SCorrosion of second degree of right hand, unspecified site, sequelaBillable
T23.602Corrosion of second degree of left hand, unspecified siteCategory
T23.602ACorrosion of second degree of left hand, unspecified site, initial encounterBillable
T23.602DCorrosion of second degree of left hand, unspecified site, subsequent encounterBillable
T23.602SCorrosion of second degree of left hand, unspecified site, sequelaBillable
T23.609Corrosion of second degree of unspecified hand, unspecified siteCategory
T23.609ACorrosion of second degree of unspecified hand, unspecified site, initial encounterBillable
T23.609DCorrosion of second degree of unspecified hand, unspecified site, subsequent encounterBillable
T23.609SCorrosion of second degree of unspecified hand, unspecified site, sequelaBillable
T23.61Corrosion of second degree of thumb (nail)Category
T23.611Corrosion of second degree of right thumb (nail)Category
T23.611ACorrosion of second degree of right thumb (nail), initial encounterBillable
T23.611DCorrosion of second degree of right thumb (nail), subsequent encounterBillable
T23.611SCorrosion of second degree of right thumb (nail), sequelaBillable
T23.612Corrosion of second degree of left thumb (nail)Category
T23.612ACorrosion of second degree of left thumb (nail), initial encounterBillable
T23.612DCorrosion of second degree of left thumb (nail), subsequent encounterBillable
T23.612SCorrosion of second degree of left thumb (nail), sequelaBillable
T23.619Corrosion of second degree of unspecified thumb (nail)Category
T23.619ACorrosion of second degree of unspecified thumb (nail), initial encounterBillable
T23.619DCorrosion of second degree of unspecified thumb (nail), subsequent encounterBillable
T23.619SCorrosion of second degree of unspecified thumb (nail), sequelaBillable
T23.62Corrosion of second degree of single finger (nail) except thumbCategory
T23.621Corrosion of second degree of single right finger (nail) except thumbCategory
T23.621ACorrosion of second degree of single right finger (nail) except thumb, initial encounterBillable
T23.621DCorrosion of second degree of single right finger (nail) except thumb, subsequent 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.