FQHCs operate under complex reimbursement rules that differ from standard fee-for-service billing. The most impactful billing errors — and their revenue consequences:
- Billing non-qualifying encounters as PPS visits.
If the rendering provider is not a qualifying FQHC provider (e.g., the visit was conducted solely by a medical assistant, nurse, or non-licensed staff), the encounter does not qualify for PPS reimbursement. These claims will be denied or recouped on audit. Impact: direct revenue loss plus potential compliance risk.
- Incorrect same-day visit consolidation.
Under Medicare FQHC rules, a medical visit and a mental health visit on the same day can qualify as two separate PPS encounters — but only if both meet qualifying encounter criteria. FQHCs frequently either incorrectly bill two visits when documentation only supports one, or fail to bill the second qualifying visit at all. Impact: overbilling risk or lost PPS revenue.
- Missing, incorrect, or mismatched G-codes.
The HCPCS G-code (G0466–G0470) must match the type of visit (new vs. established patient, medical vs. mental health). Mismatches between the G-code and the CPT code submitted cause systematic claim rejections. Impact: delayed payment and resubmission burden.
- Inadequate sliding fee scale documentation.
FQHCs are required to provide sliding fee discounts to eligible patients based on income. Failure to document the sliding fee determination — or inconsistent application of the discount schedule — creates compliance exposure during HRSA site visits and cost report audits.
- Failure to capture all same-day services.
Under the PPS model, additional ancillary services provided during a qualifying visit (lab, pharmacy, radiology) may have separate billing opportunities depending on the payer. Many FQHCs leave revenue on the table by not capturing these services.
- Cost report reconciliation errors.
The annual Medicare cost report establishes the FQHC’s PPS rate going forward. Errors in cost report preparation — misallocation of costs, incorrect FTE calculations — can result in an understated PPS rate that permanently affects reimbursement.
Squadyen’s FQHC billing review process is designed to catch all six of these error categories before they result in denied claims or audit exposure.