WAC 296-23A-0180
What supporting documentation must hospitals send for hospital services? Hospitals must send the following supporting documentation for hospital services:
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Admission history and physical examination
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Discharge summary for stays over forty-eight hours
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Emergency room reports
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Operative reports
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Anesthesia records
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Other documentation as requested by the department or self-insurer.
Hospitals must place the worker's name and claim number on the upper right-hand corner of each page of supporting documentation submitted.