ICD-10-CM · Chapter 21 · Z00-Z99
Z68 Body mass index [BMI]
Includes
- 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)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Z68..1 | Body mass index [BMI] 19.9 or less, adult | No |
| Z68..18 | Body mass index [BMI] 18.4 or less, adult | Yes |
| Z68..19 | Body mass index [BMI] 18.5-19.9, adult | Yes |
| Z68..2 | Body mass index [BMI] 20-29, adult | No |
| Z68..20 | Body mass index [BMI] 20.0-20.9, adult | Yes |
| Z68..21 | Body mass index [BMI] 21.0-21.9, adult | Yes |
| Z68..22 | Body mass index [BMI] 22.0-22.9, adult | Yes |
| Z68..23 | Body mass index [BMI] 23.0-23.9, adult | Yes |
| Z68..24 | Body mass index [BMI] 24.0-24.9, adult | Yes |
| Z68..25 | Body mass index [BMI] 25.0-25.9, adult | Yes |
| Z68..26 | Body mass index [BMI] 26.0-26.9, adult | Yes |
| Z68..27 | Body mass index [BMI] 27.0-27.9, adult | Yes |
| Z68..28 | Body mass index [BMI] 28.0-28.9, adult | Yes |
| Z68..29 | Body mass index [BMI] 29.0-29.9, adult | Yes |
| Z68..3 | Body mass index [BMI] 30-39, adult | No |
| Z68..30 | Body mass index [BMI] 30.0-30.9, adult | Yes |
| Z68..31 | Body mass index [BMI] 31.0-31.9, adult | Yes |
| Z68..32 | Body mass index [BMI] 32.0-32.9, adult | Yes |
| Z68..33 | Body mass index [BMI] 33.0-33.9, adult | Yes |
| Z68..34 | Body mass index [BMI] 34.0-34.9, adult | Yes |
| Z68..35 | Body mass index [BMI] 35.0-35.9, adult | Yes |
| Z68..36 | Body mass index [BMI] 36.0-36.9, adult | Yes |
| Z68..37 | Body mass index [BMI] 37.0-37.9, adult | Yes |
| Z68..38 | Body mass index [BMI] 38.0-38.9, adult | Yes |
| Z68..39 | Body mass index [BMI] 39.0-39.9, adult | Yes |
| Z68..4 | Body mass index [BMI] 40 or greater, adult | No |
| Z68..41 | Body mass index [BMI] 40.0-44.9, adult | Yes |
| Z68..42 | Body mass index [BMI] 45.0-49.9, adult | Yes |
| Z68..43 | Body mass index [BMI] 50.0-59.9, adult | Yes |
| Z68..44 | Body mass index [BMI] 60.0-69.9, adult | Yes |
| Z68..45 | Body mass index [BMI] 70 or greater, adult | Yes |
| Z68..5 | Body mass index [BMI] pediatric | No |
| Z68..51 | Body mass index [BMI] pediatric, less than 5th percentile for age | Yes |
| Z68..52 | Body mass index [BMI] pediatric, 5th percentile to less than 85th percentile for age | Yes |
| Z68..53 | Body mass index [BMI] pediatric, 85th percentile to less than 95th percentile for age | Yes |
| Z68..54 | Body mass index [BMI] pediatric, 95th percentile for age to less than 120% of the 95th percentile for age | Yes |
| Z68..55 | Body mass index [BMI] pediatric, 120% of the 95th percentile for age to less than 140% of the 95th percentile for age | Yes |
| Z68..56 | Body mass index [BMI] pediatric, greater than or equal to 140% of the 95th percentile for age | Yes |
Last reviewed: September 2026