kodex

Kodex

ICD-10-CM
Section

T21.7

Corrosion of third degree of trunk

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)
      • T21 Burn and corrosion of trunk
        • T21.7 Corrosion of third degree of trunk
          • T21.70 Corrosion of third degree of trunk, unspecified site
          • T21.71 Corrosion of third degree of chest wall
          • T21.72 Corrosion of third degree of abdominal wall
          • T21.73 Corrosion of third degree of upper back
          • T21.74 Corrosion of third degree of lower back
          • T21.75 Corrosion of third degree of buttock
          • T21.76 Corrosion of third degree of male genital region
          • T21.77 Corrosion of third degree of female genital region
          • T21.79 Corrosion of third degree of other site of trunk

Notes

S00-T88

  • 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

T21.7

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

Use Additional

T21.7

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

T20-T25

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

S00-T88

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

Includes

T21

  • burns and corrosion of hip region

T20-T25

  • 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

S00-T88

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

Excludes 2

T21

  • burns and corrosion of axilla (T22.- with fifth character 4)
  • burns and corrosion of scapular region (T22.- with fifth character 6)
  • burns and corrosion of shoulder (T22.- with fifth character 5)