ICD-10-CM 2027 diagnosis code
Z68.3Body mass index [BMI] 30-39, adult
Z68.3 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.
Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z68.3
Z68.3 is the ICD-10-CM diagnosis code for body mass index [BMI] 30-39, adult. 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 10 subcodes must be used instead.
Within Z68 (body mass index [BMI]), Z68.3 is specifically for body mass index [BMI] 30-39, adult. Related codes cover 19.9 or less, adult (Z68.1), 20-29, adult (Z68.2), 40 or greater, adult (Z68.4) and pediatric (Z68.5).
To report this condition, pick the subcode that matches the documentation: Z68.30 (adult), Z68.31 (adult), Z68.32 (adult), Z68.33 (adult), Z68.34 (adult), Z68.35 (adult), Z68.36 (adult), Z68.37 (adult) and 2 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2021 (title revised).
Specific codes under Z68.3
- Z68.30Body mass index [BMI] 30.0-30.9, adultBillable
- Z68.31Body mass index [BMI] 31.0-31.9, adultBillable
- Z68.32Body mass index [BMI] 32.0-32.9, adultBillable
- Z68.33Body mass index [BMI] 33.0-33.9, adultBillable
- Z68.34Body mass index [BMI] 34.0-34.9, adultBillable
- Z68.35Body mass index [BMI] 35.0-35.9, adultBillable
- Z68.36Body mass index [BMI] 36.0-36.9, adultBillable
- Z68.37Body mass index [BMI] 37.0-37.9, adultBillable
- Z68.38Body mass index [BMI] 38.0-38.9, adultBillable
- Z68.39Body mass index [BMI] 39.0-39.9, adultBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to Z68.3.
› From Z68 Body mass index [BMI]
- BMI adult codes are for use for persons 20 years of age or older
- BMI pediatric codes are for use for persons 2-19 years of age.
- These percentiles are based on the growth charts published by the Centers for Disease Control and Prevention (CDC)
Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2021 (effective 10/1/2020): Title revised — was “Body mass index (BMI) 30-39, adult”
Common questions about Z68.3
Is Z68.3 billable?
- No. Z68.3 is a header code. Report one of its more specific subcodes instead.