T30.4

Corrosion of unspecified body region, unspecified degree

Billable / specific

T30.4 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • This code is not for inpatient use. Code to specified site and degree of corrosion
  • Corrosion NOS
  • Multiple corrosion NOS

Includes (from T30)

  • Note: Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • Note: The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Excludes2

Not included here — may be reported together when both conditions exist.

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from T30)

Also known as

  • This code is not for inpatient use. Code to specified site and degree of corrosion
  • Corrosion NOS
  • Multiple corrosion NOS
  • Corrosion

Parent code

  • T30Burn and corrosion, body region unspecifiedHeader

Related codes

  • T30.0Burn of unspecified body region, unspecified degreeBillable

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