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, adult) (note BMI 19 exception).
- V85.1 (Body Mass Index between 19-24, adult) and V85.21 (Body Mass Index 25.0-25.9, adult) through V85.25 (Body Mass Index 29.0-29.9, adult) crosswalk to 10 codes in ICD-10: Z68.20 (Body mass index [BMI] 20.0-20.9, adult) through Z68.29 (Body mass index [BMI] 29.0-29.9, adult)
- V85.30 (Body Mass Index 30.0-30.9, adult) through V85.39 (Body Mass Index 39.0-39.9, adult) crosswalk directly to Z68.30 (Body mass index [BMI] 30.0-30.9, adult) through Z68.39 (Body mass index [BMI] 39.0-39.9, adult)
- V85.41 (Body Mass Index 40.0-44.9, adult) through V85.45 (Body Mass Index 70 and over, adult) crosswalk directly to Z68.41 (Body mass index [BMI] 40.0-44.9, adult) through Z68.45 (Body mass index [BMI] 70 or greater, adult)
V85.5x (Body Mass Index, pediatric …) convert to Z68.5- (Body mass index [BMI], pediatric…). Each code...
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