A complete resource for the introduction to billing medical insurance for therapy services for physical therapists, occupational therapists and speech therapists. Whether you are a therapy office looking to have a better understanding of the billing process, an established billing service looking to expand your billing specialties or a new biller trying to get started in the field of therapy, this book will give you an introduction to the "ins and outs" of therapy billing. Topics covered include how participation with insurance carriers affects the billing, the credentialing process, authorizations and referrals, modifiers, modalities, submitting and tracking claims, workers comp, auto accident claims, Medicare, Medicaid, CPT codes, ICD9 codes, ICD10 codes, taxonomy codes, steering clear of fraud, NPI #s, UPIN, PTAN, tax ID#s, and experimental and investigational treatments.