T28.9

Corrosions of other and unspecified internal organs

Requires 7th character

T28.9 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Includes (from T28)

  • 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.

Code first

Sequence the underlying condition first.

  • (T51-T65) to identify chemical and intent

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from T28)
  • external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98) (from T28)
  • external cause code to identify place (Y92) (from T28)

7th character

This code requires a 7th character (defined at T28). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Parent code

  • T28Burn and corrosion of other internal organsNeeds 7th char

More specific codes T28.9

  • T28.90Corrosions of unspecified internal organsNeeds 7th char
  • T28.91Corrosions of ear drumNeeds 7th char
  • T28.99Corrosions of other internal organsNeeds 7th char

Related codes

  • T28.0Burn of mouth and pharynxNeeds 7th char
  • T28.1Burn of esophagusNeeds 7th char
  • T28.2Burn of other parts of alimentary tractNeeds 7th char
  • T28.3Burn of internal genitourinary organsNeeds 7th char
  • T28.4Burns of other and unspecified internal organsNeeds 7th char
  • T28.5Corrosion of mouth and pharynxNeeds 7th char
  • T28.6Corrosion of esophagusNeeds 7th char
  • T28.7Corrosion of other parts of alimentary tractNeeds 7th char
  • T28.8Corrosion of internal genitourinary organsNeeds 7th char

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