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Medical Billing and Coding Resources

Ambulatory Surgery Center

ASC billing is a combination of hospital and physician billing. Although ASCs use CPT and HCPCS Level II codes to bill most of their services (as do physicians), some payers will allow an ASC to bill ICD-9-CM procedure codes (like a hospital). Some payers even base implant reimbursement on revenue code classification. It’s important to use the proper form when submitting claims. Medicare pays for ASC services under Part B and requires the CMS-1500 claim form.