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code first

  1. M

    Wiki Rules of "code first" for Z09/Z86/Z87?

    Codes Z86 and Z87 tell you to code Z09 first if it is a follow up. However, my question is - do these codes NEED the Z09 at all? For example, if the visit is not a follow-up visit for that specific issue, but they have a past history of that issue, is the Z09 code still required?
  2. K

    Wiki Coding adverse effects of drug for Inpatient claims

    A patient was admitted to the hospital for urinary retention, likely secondary to opiates though possibly anticholinergics (according to physician documentation). The hospital billed R33.0- drug-induced urinary retention as the Primary diagnosis (PDX). Another reviewer suggested the PDX should...
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