Z68.5Body mass index [BMI] pediatric

Z68.5 is the ICD-10-CM diagnosis code for body mass index [BMI] pediatric. It belongs to category Z68 (body mass index [BMI]), block Z68 (body mass index [BMI]) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within Z68 (body mass index [BMI]), Z68.5 is specifically for body mass index [BMI] pediatric. Related codes cover 19.9 or less, adult (Z68.1), 20-29, adult (Z68.2), 30-39, adult (Z68.3) and 40 or greater, adult (Z68.4).

To report this condition, pick the subcode that matches the documentation: Z68.51 (less than 5th percentile for age), Z68.52 (5th percentile to less than 85th percentile for age), Z68.53 (85th percentile to less than 95th percentile for age), Z68.54 (95th percentile for age to less than 120% of the 95th percentile for age), Z68.55 (120% of the 95th percentile for age to less than 140% of the 95th percentile for age) and Z68.56 (greater than or equal to 140% of the 95th percentile for age).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2021 (title revised).