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General Surgery Coding Alert


V85 to Z68: Take a Straight BMI Path from ICD-9 to ICD-10

Adult codes still dominate. With all the press on childhood obesity, ICD-10 still provides greater granularity for measures of adult body mass index (BMI). In fact, the new code set provides a near-perfect one-to-one correspondence with ICD-9 Codes. Don't forget: CMS has announced a proposed implementation date change from Oct. 1, 2013 to Oct. 1, 2014 for the new diagnosis code set. Expect Easy Crosswalk Some ICD-9 to ICD-10 conversions require additional documentation, or even classifying conditions differently than you've been used to. That's not the case for BMI measures. The only change relates to where the codes break (for instance, "less than 19" versus "19 or less"), and that more specific BMI incremental reporting begins with BMI 20 in ICD-10, as opposed to BMI 25 in ICD-9. Here's the crosswalk breakdown: V85.0 (Body Mass Index less than 19, adult) converts to Z68.1 (Body mass index [BMI] 19 or less, [...]

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