Kodex

Section

T20.51

Corrosion of first degree of ear [any part, except ear drum]

Hierarchy

S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
- T20-T25 Burns and corrosions of external body surface, specified by site (T20-T25)
  - T20 Burn and corrosion of head, face, and neck
    - T20.5 Corrosion of first degree of head, face, and neck
      - T20.51 Corrosion of first degree of ear [any part, except ear drum]
        
        T20.511 Corrosion of first degree of right ear [any part, except ear drum]
        
        T20.512 Corrosion of first degree of left ear [any part, except ear drum]
        
        T20.519 Corrosion of first degree of unspecified ear [any part, except ear drum]

Notes

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
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.

Code First

(T51-T65) to identify chemical and intent
- T51-T65 Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Use Additional

external cause code to identify place (Y92)
- Y92 Place of occurrence of the external cause

code from category T31 or T32 to identify extent of body surface involved

code to identify any retained foreign body, if applicable (Z18.-)
- Z18 Retained foreign body fragments

Includes

burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]

Excludes 1

P10-P15 Birth trauma (P10-P15)
obstetric trauma (O70-O71)

Excludes 2

T20.51

corrosion of ear drum (T28.91-)
- T28.91 Corrosions of ear drum

burn and corrosion of ear drum (T28.41, T28.91)
- T28.41 Burn of ear drum
- T28.91 Corrosions of ear drum
burn and corrosion of eye and adnexa (T26.-)
- T26 Burn and corrosion confined to eye and adnexa
burn and corrosion of mouth and pharynx (T28.0)
- T28.0 Burn of mouth and pharynx