Body mass index (BMI) (Z68) ICD-10-CM
The Z68 code range covers body mass index (bmi) with 39 ICD-10-CM diagnosis codes. 33 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Kilograms per meters squared
- 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)
Codes in the Z68 Range 39 codes · 33 billable
- Z68 Body mass index [BMI]Non-billable
- Z68.1 Body mass index [BMI] 19.9 or less, adultNon-billable
- Z68.18 Body mass index [BMI] 18.4 or less, adult New
- Z68.19 Body mass index [BMI] 18.5-19.9, adult New
- Z68.2 Body mass index [BMI] 20-29, adultNon-billable
- Z68.20 Body mass index [BMI] 20.0-20.9, adult
- Z68.21 Body mass index [BMI] 21.0-21.9, adult
- Z68.22 Body mass index [BMI] 22.0-22.9, adult
- Z68.23 Body mass index [BMI] 23.0-23.9, adult
- Z68.24 Body mass index [BMI] 24.0-24.9, adult
- Z68.25 Body mass index [BMI] 25.0-25.9, adult
- Z68.26 Body mass index [BMI] 26.0-26.9, adult
- Z68.27 Body mass index [BMI] 27.0-27.9, adult
- Z68.28 Body mass index [BMI] 28.0-28.9, adult
- Z68.29 Body mass index [BMI] 29.0-29.9, adult
- Z68.3 Body mass index [BMI] 30-39, adultNon-billable
- Z68.30 Body mass index [BMI] 30.0-30.9, adult
- Z68.31 Body mass index [BMI] 31.0-31.9, adult
- Z68.32 Body mass index [BMI] 32.0-32.9, adult
- Z68.33 Body mass index [BMI] 33.0-33.9, adult
- Z68.34 Body mass index [BMI] 34.0-34.9, adult
- Z68.35 Body mass index [BMI] 35.0-35.9, adult
- Z68.36 Body mass index [BMI] 36.0-36.9, adult
- Z68.37 Body mass index [BMI] 37.0-37.9, adult
- Z68.38 Body mass index [BMI] 38.0-38.9, adult
- Z68.39 Body mass index [BMI] 39.0-39.9, adult
- Z68.4 Body mass index [BMI] 40 or greater, adultNon-billable
- Z68.41 Body mass index [BMI] 40.0-44.9, adult
- Z68.42 Body mass index [BMI] 45.0-49.9, adult
- Z68.43 Body mass index [BMI] 50.0-59.9, adult
- Z68.44 Body mass index [BMI] 60.0-69.9, adult
- Z68.45 Body mass index [BMI] 70 or greater, adult
- Z68.5 Body mass index [BMI] pediatricNon-billable
- Z68.51 Body mass index [BMI] pediatric, less than 5th percentile for age
- Z68.52 Body mass index [BMI] pediatric, 5th percentile to less than 85th percentile for age
- Z68.53 Body mass index [BMI] pediatric, 85th percentile to less than 95th percentile for age
- Z68.54 Body mass index [BMI] pediatric, 95th percentile for age to less than 120% of the 95th percentile for age
- Z68.55 Body mass index [BMI] pediatric, 120% of the 95th percentile for age to less than 140% of the 95th percentile for age
- Z68.56 Body mass index [BMI] pediatric, greater than or equal to 140% of the 95th percentile for age
About the Z68 Code Range
Body mass index (BMI) entries distinguish adults from children.
Under Z68, adult codes are grouped by BMI value: Z68.1 for 19.9 or less, Z68.2 for 20–29, Z68.3 for 30–39, and Z68.4 for 40 or greater. Z68.5 is the pediatric subdivision.
FY 2027 changes: The FY 2027 ICD-10-CM update, effective October 1, 2026, added Z68.18 and Z68.19 and deleted Z68.1.
Questions About This Page
How many billable codes are in the Z68 range?
Of the 39 codes in this range, 33 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Z68 range classify?
The range classifies body mass index (bmi). Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
