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ICD-10-CM Codes
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S00-T88
Injury, poisoning and certain other consequences of external causes
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T20-T25
Burns and corrosions of external body surface, specified by site
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T21-
Burn and corrosion of trunk
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2021 ICD-10-CM Diagnosis Code T21.79XA
2021 ICD-10-CM Diagnosis Code T21.79XA
Corrosion of third degree of other site of trunk, initial encounter
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- T21.79XA is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Short description: Corrosion of third degree of oth site of trunk, init encntr
- The 2021 edition of ICD-10-CM T21.79XA became effective on October 1, 2020.
- This is the American ICD-10-CM version of T21.79XA - other international versions of ICD-10 T21.79XA may differ.
The following code(s) above
T21.79XA contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
T21.79XA:
- S00-T88
2021 ICD-10-CM Range S00-T88
Injury, poisoning and certain other consequences of external causesNote- 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 to identify any retained foreign body, if applicable (Z18.-)
- T20-T25
2021 ICD-10-CM Range T20-T25
Burns and corrosions of external body surface, specified by siteIncludes- 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]
Use Additional- code from category T31 or T32 to identify extent of body surface involved
- T21
ICD-10-CM Diagnosis Code T21
Burn and corrosion of trunk
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
Includes- burns and corrosion of hip region
Type 2 Excludes- 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)
- T21.7
ICD-10-CM Diagnosis Code T21.7
Corrosion of third degree of trunk
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
Code First- (T51-T65) to identify chemical and intent
Use Additional- external cause code to identify place (Y92)
- 927 Extensive burns or full thickness burns with mv >96 hours with skin graft
- 933 Extensive burns or full thickness burns with mv >96 hours without skin graft
- 928 Full thickness burn with skin graft or inhalation injury with cc/mcc
- 929 Full thickness burn with skin graft or inhalation injury without cc/mcc
Convert T21.79XA to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To T21.79XA
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
T21.79XA
…… initial encounter
T22 Burn and corrosion of shoulder and upper limb, except wrist and hand
T22.0 Burn of unspecified degree of shoulder and upper limb, except wrist and hand
T22.00 Burn of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site
T22.01 Burn of unspecified degree of forearm
T22.011 Burn of unspecified degree of right forearm
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
