This policy defines Neighborhood Health Plan of Rhode Island reimbursement, billing, documentation, coding, modifier payment percentages, and exclusions for anesthesia services across Medicaid (excluding EFP), INTEGRITY, and Commercial lines. It describes which anesthesia services are reimbursable when medically necessary and performed by qualified providers (anesthesiologists and CRNAs) and notes exclusions such as anesthesia assistants, student-provided services, CRNA services by salaried facility employees, anesthesia by the operating surgeon, standby anesthesia, post-operative pain management on the same day as the surgical procedure, and anesthesia for procedures not designated as requiring anesthesia.
Neighborhood reimburses anesthesia claims using the formula (Total Time Units + Base Unit) x Anesthesia Conversion Factor and applies modifier adjustments depending on the service and modifier. Neighborhood uses CMS base unit values and follows CMS documentation standards. Modifier payment percentages include: AA = 100%, AD = 100%, QK = 50%, QY = 50%, QX = 80% of remaining allowable, and QZ = 80%. Physical status modifiers P1–P6 and their relative weight unit additions are required where applicable.
Claims must be billed under the name and NPI of the provider who actually rendered the service; 'incident to' billing for anesthesia is not recognized. Coding must follow CPT, ICD-10-CM and HCPCS standards. The policy requires that records support billed services and contain detailed anesthesia documentation (type of anesthesia, exact time spent, procedure matching surgeon's operative report, practitioner credentials/signature, patient identifiers, positioning, discontinuous time, relief provider times, and post-operative pain management details).