T28.9 Corrosions of other and unspecified internal organs

Non-billable header with 3 child codes.

Code first

• (T51-T65) to identify chemical and intent

Applies from T28 Burn and corrosion of other internal organs

Use additional code

• external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)
• external cause code to identify place (Y92)

7th character note

• The appropriate 7th character is to be added to each code from category T28

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Codes under T28.9

• T28.90 Corrosions of unspecified internal organs
• T28.91 Corrosions of ear drum
• T28.99 Corrosions of other internal organs

Code annotations containing back-references to T28.9

Back-references to T28

• Type 1 Excludes: T66 Radiation sickness, unspecified ("burns (T20-T31)")
• Type 2 Excludes: T67 Effects of heat and light ("burns (T20-T31)")
• Type 2 Excludes: T75 Other and unspecified effects of other external causes ("burns (electric) (T20-T31)")

Nearby codes

• T28.7XXS Corrosion of other parts of alimentary tract, sequela
• T28.8 Corrosion of internal genitourinary organs
• T28.8XXA Corrosion of internal genitourinary organs, initial encounter
• T28.8XXD Corrosion of internal genitourinary organs, subsequent encounter
• T28.8XXS Corrosion of internal genitourinary organs, sequela
• T28.9 Corrosions of other and unspecified internal organs (this code)
• T28.90 Corrosions of unspecified internal organs
• T28.90XA Corrosions of unspecified internal organs, initial encounter
• T28.90XD Corrosions of unspecified internal organs, subsequent encounter
• T28.90XS Corrosions of unspecified internal organs, sequela
• T28.91 Corrosions of ear drum