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ICD-10-CM category Z68: Body mass index [BMI]

Category Z68 is a heading in chapter 21 (Factors influencing health status and contact with health services (Z00-Z99)), section Body mass index [BMI] (Z68). It is not billable; report one of the 33 complete codes below.

Notes that apply to every Z68 code

Inclusion terms
  • Kilograms per meters squared
Notes
  • 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)

Billable codes in Z68

Billable FY2027 ICD-10-CM codes in category Z68
CodeDescription
Z68.18Body mass index [BMI] 18.4 or less, adult
Z68.19Body mass index [BMI] 18.5-19.9, adult
Z68.20Body mass index [BMI] 20.0-20.9, adult
Z68.21Body mass index [BMI] 21.0-21.9, adult
Z68.22Body mass index [BMI] 22.0-22.9, adult
Z68.23Body mass index [BMI] 23.0-23.9, adult
Z68.24Body mass index [BMI] 24.0-24.9, adult
Z68.25Body mass index [BMI] 25.0-25.9, adult
Z68.26Body mass index [BMI] 26.0-26.9, adult
Z68.27Body mass index [BMI] 27.0-27.9, adult
Z68.28Body mass index [BMI] 28.0-28.9, adult
Z68.29Body mass index [BMI] 29.0-29.9, adult
Z68.30Body mass index [BMI] 30.0-30.9, adult
Z68.31Body mass index [BMI] 31.0-31.9, adult
Z68.32Body mass index [BMI] 32.0-32.9, adult
Z68.33Body mass index [BMI] 33.0-33.9, adult
Z68.34Body mass index [BMI] 34.0-34.9, adult
Z68.35Body mass index [BMI] 35.0-35.9, adult
Z68.36Body mass index [BMI] 36.0-36.9, adult
Z68.37Body mass index [BMI] 37.0-37.9, adult
Z68.38Body mass index [BMI] 38.0-38.9, adult
Z68.39Body mass index [BMI] 39.0-39.9, adult
Z68.41Body mass index [BMI] 40.0-44.9, adult
Z68.42Body mass index [BMI] 45.0-49.9, adult
Z68.43Body mass index [BMI] 50.0-59.9, adult
Z68.44Body mass index [BMI] 60.0-69.9, adult
Z68.45Body mass index [BMI] 70 or greater, adult
Z68.51Body mass index [BMI] pediatric, less than 5th percentile for age
Z68.52Body mass index [BMI] pediatric, 5th percentile to less than 85th percentile for age
Z68.53Body mass index [BMI] pediatric, 85th percentile to less than 95th percentile for age
Z68.54Body mass index [BMI] pediatric, 95th percentile for age to less than 120% of the 95th percentile for age
Z68.55Body mass index [BMI] pediatric, 120% of the 95th percentile for age to less than 140% of the 95th percentile for age
Z68.56Body mass index [BMI] pediatric, greater than or equal to 140% of the 95th percentile for age

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.