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ICD-10-CM · FY 2026 APRIL UPDATE

T20.7

Corrosion of third degree of head, face, and neck

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
T20.70Corrosion of third degree of head, face, and neck, unspecified siteCategory
T20.70XACorrosion of third degree of head, face, and neck, unspecified site, initial encounterBillable
T20.70XDCorrosion of third degree of head, face, and neck, unspecified site, subsequent encounterBillable
T20.70XSCorrosion of third degree of head, face, and neck, unspecified site, sequelaBillable
T20.71Corrosion of third degree of ear [any part, except ear drum]Category
T20.711Corrosion of third degree of right ear [any part, except ear drum]Category
T20.711ACorrosion of third degree of right ear [any part, except ear drum], initial encounterBillable
T20.711DCorrosion of third degree of right ear [any part, except ear drum], subsequent encounterBillable
T20.711SCorrosion of third degree of right ear [any part, except ear drum], sequelaBillable
T20.712Corrosion of third degree of left ear [any part, except ear drum]Category
T20.712ACorrosion of third degree of left ear [any part, except ear drum], initial encounterBillable
T20.712DCorrosion of third degree of left ear [any part, except ear drum], subsequent encounterBillable
T20.712SCorrosion of third degree of left ear [any part, except ear drum], sequelaBillable
T20.719Corrosion of third degree of unspecified ear [any part, except ear drum]Category
T20.719ACorrosion of third degree of unspecified ear [any part, except ear drum], initial encounterBillable
T20.719DCorrosion of third degree of unspecified ear [any part, except ear drum], subsequent encounterBillable
T20.719SCorrosion of third degree of unspecified ear [any part, except ear drum], sequelaBillable
T20.72Corrosion of third degree of lip(s)Category
T20.72XACorrosion of third degree of lip(s), initial encounterBillable
T20.72XDCorrosion of third degree of lip(s), subsequent encounterBillable
T20.72XSCorrosion of third degree of lip(s), sequelaBillable
T20.73Corrosion of third degree of chinCategory
T20.73XACorrosion of third degree of chin, initial encounterBillable
T20.73XDCorrosion of third degree of chin, subsequent encounterBillable
T20.73XSCorrosion of third degree of chin, sequelaBillable
T20.74Corrosion of third degree of nose (septum)Category
T20.74XACorrosion of third degree of nose (septum), initial encounterBillable
T20.74XDCorrosion of third degree of nose (septum), subsequent encounterBillable
T20.74XSCorrosion of third degree of nose (septum), sequelaBillable
T20.75Corrosion of third degree of scalp [any part]Category

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.