MedicaidDocumentationHigh impact
[Ohio] Billing Guidance
CareSource·OH · Pathology, Radiology, Pediatrics +1 more·Claims & Billing
Effective date
Sep 1, 2026
We identified it
Aug 1, 2026
Summary
CareSource Ohio Medicaid issued comprehensive billing guidance effective September 1, 2026, clarifying six key compliance areas: laboratory services in hospital settings cannot be separately billed, fluoride varnish is limited to 2 applications/year for children under 21, physician interpretation-only codes must not include technical components, GZ modifier usage requires ABN documentation, add-on procedure codes require primary procedure codes, and inpatient ICD-10 codes must specify laterality (right/left/bilateral) rather than using unspecified codes. Providers must immediately review billing practices to avoid claim denials and potential recovery of payments found non-compliant with OAC and CMS rules.
Action Required
By August 31, 2026: Billing team must implement the following compliance measures: (1) LABORATORY BILLING: Update billing software to prevent separate billing of lab tests performed as part of hospital diagnostic services; communicate to providers that clinical lab fee schedule and physician fee schedule (with -26 modifier for interpretation) apply only to independent lab services. (2) FLUORIDE VARNISH: Configure system to limit fluoride varnish (pediatric patients under age 21) to maximum 2 applications per calendar year; require clinical documentation for any requests exceeding this limit. (3) RADIOLOGY CODING: Audit templates to ensure professional interpretation codes (-26 modifier) are never billed with technical component modifiers (-TC); train providers and coders on proper component reporting. (4) GZ MODIFIER: Establish protocol requiring Advance Beneficiary Notices (ABN) for any claims submitted with GZ modifier; flag claims without ABN for denial review. (5) ADD-ON CODES: Update billing rules to require primary procedure code presence before allowing add-on code submission; implement system edits to reject add-on codes submitted standalone. (6) INPATIENT CODING: Audit ICD-10 submissions to eliminate unspecified laterality codes; require specific documentation of right, left, or bilateral condition status in all inpatient records. Billing compliance officer should communicate these changes to all clinical and billing staff. Failure to comply will result in claim denials and CareSource reserves the right to recover payments made in error.