lookup Detail
| Topic | GA |
| Category | BILLING |
| Code | GAK04 |
| Statement | The documentation submitted does not support the number of units billed. Refer to "Internet-Only Manuals, 100-08, Medicare Program Integrity Manual Chapter 3, Section 3.6.2.4 (coding determinations) and Section 3.6.2.5, Medicare Claims Processing Manual Chapter 23 (description of HCPCS); AMA CPT Professional coding guidelines PUB 100-4 Ch. 4 Section 20.4 (UOS), 42 CFR Section 414.40, AMA HCPCS Professional coding guidelines |