T21.47XA
T21.47XA: Corrosion of unspecified degree of female genital region, initial encounter
Billable / specific codeICD-10-CM
T21.47XA is a billable, specific ICD-10-CM code for corrosion of unspecified degree of female genital region, initial encounter. It is valid for submission on a claim.
Check T21.47XA with the rest of the claim: free scrubber7th character "A": initial encounter
The appropriate 7th character is to be added to each code from category T21
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- corrosion of vagina (T28.8)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Corrosion of unspecified degree of labium (majus) (minus)
- Corrosion of unspecified degree of perineum
- Corrosion of unspecified degree of vulva
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T21.47XA is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56900Billing and Coding: Immunizations
- A59186Billing and Coding: Magnesium
Code history
Unchanged in every release from FY2024 to FY2027.