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What maintenance type code should a trading partner use to report missing data on a previously submitted but incomplete transaction?


IAIABC protocols indicate that maintenance type code “CO” (correction) is used to correct or fill in data elements in response to a TE (transaction accepted with error) message; maintenance type code “02” (change) is used for changes that are not in response to an error message. If both corrections and changes need to be sent for a given claim, they can be transmitted together using either of these maintenance type codes. See section N of the California EDI Implementation Guide for details on changes and corrections.

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