Corrosion of unspecified degree of head, face, and neck, unspecified site T20.40

The ICD10 code for the diagnosis "Corrosion of unspecified degree of head, face, and neck, unspecified site" is "T20.40". T20.40 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • T20.40 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM T20.40 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of T20.40 - other international versions of ICD-10 T20.40 may differ.

Codes: = Billable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.