ICD-10-CM › S00-T88 › T20-T25 › T21.69 Corrosion of second degree of... › T21.69XA
Corrosion of second degree of other site of trunk, initial encounter
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Corrosion of second degree of other site of trunk, initial encounter
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from T21 Burn and corrosion of trunk
Seventh character required
- The appropriate 7th character is to be added to each code from category T21
Excludes2 - not included here
- 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)
Includes
- burns and corrosion of hip region
Inherited from the T20-T25 section 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
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]
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Corrosion > trunk > specified site NEC > second degree
Codes in the same group
| Code | Description | Status |
|---|---|---|
| T21.69XD | Corrosion of second degree of other site of trunk, subsequent encounter | Valid |
| T21.69XS | Corrosion of second degree of other site of trunk, sequela | Valid |