The diagnostic statement "goiter, nodular nontoxic" would be coded as an unspecified nontoxic goiter, ICD-10 CM code E04.9, because the diagnosis does not describe the condition as diffuse, uninodular, multinodular, or other specified nontoxic goiter. This is an example of which abbreviation used in ICD?

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NOS stands for "Not Otherwise Specified" and is used in ICD coding when a diagnosis is not specified as part of a more detailed category. In this case, because the goiter is described as nodular nontoxic without further specification, it is coded as unspecified nontoxic goiter, E04.9, under the NOS category.

The Diagnostic Statement "Goiter, Nodular Nontoxic" Would Be Coded as an Unspecified