lookup Detail
| Topic | GA |
| Category | BILLING |
| Code | GAK12 |
| Statement | Documentation supports the service provided was not covered, however, the Advanced Beneficiary Notice (ABN) of Noncoverage was invalid, therefore the provider is liable for charges incurred on this bill. Refer to Internet-Only Manuals 100-04, Medicare Claims Processing Manual Chapter 30, 50.6.1 |