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ICD-10-CM · FY 2026 APRIL UPDATE

S00.4

Superficial injury of ear

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
S00.40Unspecified superficial injury of earCategory
S00.401Unspecified superficial injury of right earCategory
S00.401AUnspecified superficial injury of right ear, initial encounterBillable
S00.401DUnspecified superficial injury of right ear, subsequent encounterBillable
S00.401SUnspecified superficial injury of right ear, sequelaBillable
S00.402Unspecified superficial injury of left earCategory
S00.402AUnspecified superficial injury of left ear, initial encounterBillable
S00.402DUnspecified superficial injury of left ear, subsequent encounterBillable
S00.402SUnspecified superficial injury of left ear, sequelaBillable
S00.409Unspecified superficial injury of unspecified earCategory
S00.409AUnspecified superficial injury of unspecified ear, initial encounterBillable
S00.409DUnspecified superficial injury of unspecified ear, subsequent encounterBillable
S00.409SUnspecified superficial injury of unspecified ear, sequelaBillable
S00.41Abrasion of earCategory
S00.411Abrasion of right earCategory
S00.411AAbrasion of right ear, initial encounterBillable
S00.411DAbrasion of right ear, subsequent encounterBillable
S00.411SAbrasion of right ear, sequelaBillable
S00.412Abrasion of left earCategory
S00.412AAbrasion of left ear, initial encounterBillable
S00.412DAbrasion of left ear, subsequent encounterBillable
S00.412SAbrasion of left ear, sequelaBillable
S00.419Abrasion of unspecified earCategory
S00.419AAbrasion of unspecified ear, initial encounterBillable
S00.419DAbrasion of unspecified ear, subsequent encounterBillable
S00.419SAbrasion of unspecified ear, sequelaBillable
S00.42Blister (nonthermal) of earCategory
S00.421Blister (nonthermal) of right earCategory
S00.421ABlister (nonthermal) of right ear, initial encounterBillable
S00.421DBlister (nonthermal) of right ear, 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.

Open official CMS files

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