T30.4
T30.4: Corrosion of unspecified body region, unspecified degree
Billable / specific codeICD-10-CM
T30.4 is a billable, specific ICD-10-CM code for corrosion of unspecified body region, unspecified degree. It is valid for submission on a claim.
Check T30.4 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- This code is not for inpatient use. Code to specified site and degree of corrosion
- Corrosion NOS
- Multiple corrosion NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T30.4 is named in 7 Medicare coverage policies: 5 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A56566Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
- A57067Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
- A52438Billing and Coding: Tetanus Immunization
- A57205Billing and Coding: Oximetry Services
Alphabetic index entries that lead here
- Corrosion(injury) (acid) (caustic) (chemical) (lime) (external) (internal)
Code history
Unchanged in every release from FY2024 to FY2027.