T21.55XA Corrosion of first degree of buttock, initial encounter
Instructional Notes:
T21.55XA Description: Corrosion of first degree of buttock, initial encounter ↓
T21.55 Description: Corrosion of first degree of buttock Inclusion Term:
Corrosion of first degree of anus
↓
T21.5 Description: Corrosion of first degree of trunk Code First:
(T51-T65) to identify chemical and intent
Use Additional Code:
external cause code to identify place (Y92)
↓
T21 Description: Burn and corrosion of trunk Exclude2:
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)
Include:
burns and corrosion of hip region
↓
T20-T25 Description: Burns and corrosions of external body surface, specified by site (T20-T25) Use Additional Code:
code from category T31 or T32 to identify extent of body surface involved
Include:
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]
↓
S00-T88 Description: Injury, poisoning and certain other consequences of external causes Exclude2:
birth trauma (P10-P15)
obstetric trauma (O70-O71)
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
Use Additional Code:
code to identify any retained foreign body, if applicable (Z18.-)