T20.42XD
T20.42XD: Corrosion of unspecified degree of lip(s), subsequent encounter
Billable / specific codeICD-10-CMPOA exempt
T20.42XD is a billable, specific ICD-10-CM code for corrosion of unspecified degree of lip(s), subsequent encounter. It is valid for submission on a claim.
Check T20.42XD with the rest of the claim: free scrubber7th character "D": subsequent encounter
The appropriate 7th character is to be added to each code from category T20
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above T20.42XD
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T20.42XD is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A59186Billing and Coding: Magnesium
Code history
Unchanged in every release from FY2024 to FY2027.