High impact
[Ohio] Billing Guidance
CareSource·Effective Sep 1, 2026
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.